User Panel
User Panel
User Panel
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Posted: 1/11/2019 2:12:26 AM EST
[#1]
Quote HistoryQuoted:
Well assuming it's a serious question, a magnetic reversal that's fuddled for a while and cuts down on the protective aspects of the Earth's magnetic field would be pretty shitty. Quote HistoryQuoted:
Quoted:
Meh whats the worst that can happen 3 years without a magnetic blanket would really suck. Stock up on lead and titanium oxide now. Maybe this is the existential threat that the world is trying to 'fixed' to survive in somebody's twisted plan. If there were an asteroid with a 100% guarnatee to hit Earth in 4 years, how would the population react? Similar issue here, if you are going to be exposed to radiation for 5 years, what would people do? A 16 hour flight gives you a dose of ionizing radiationequal to a chest X-Ray . That does not count the additional exposure from TSA scanners. Not much, but if that ends up at ground level, it'd be "much". Again, playing with data that's not commonly known to get creative juices moving. The creative thought doesn't have to be about theworld and cabal, just try to learn something new every day, research it a bit. Eventually, a lot falls together as items learned help understand other problems presented. |
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Posted: 1/11/2019 2:37:36 AM EST
[#2]
Quote HistoryQuoted:
That might save the country if that were to happen, I’ll take one for the team.  Quote HistoryQuoted:
Quoted:
 https://www.youtube.com/watch?v=DtnyC4gapSk
https://www.youtube.com/watch?v=5swJwqGO5tk
All crazy talk? Maybe. But how does it explain these US Navy maps??? https://i.pinimg.com/736x/84/f6/05/84f6053ae848c0e0d0ffc8288be33e33.jpg https://iseemtohavemisplacedmygiveashit.files.wordpress.com/2012/09/100_7385.jpg https://earthchange.files.wordpress.com/2012/10/navyfuturemap1.jpg  
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Posted: 1/11/2019 2:45:55 AM EST
[#3]
Quote HistoryQuoted: Once again, the question is what a redistribution of an unknown number of trillion of tons of glacial ice were to be done over a fairly short period of time and what effect that would have on the earth. |
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Posted: 1/11/2019 2:52:50 AM EST
[#4]
Fuck it. Release the dinosaurs.
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Posted: 1/11/2019 3:02:25 AM EST
[#5]
Quote History |
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Posted: 1/11/2019 3:04:35 AM EST
[#6]
Quote HistoryQuoted:
https://www.youtube.com/watch?v=DtnyC4gapSk
https://www.youtube.com/watch?v=5swJwqGO5tk
All crazy talk? Maybe. But how does it explain these US Navy maps??? https://i.pinimg.com/736x/84/f6/05/84f6053ae848c0e0d0ffc8288be33e33.jpg https://iseemtohavemisplacedmygiveashit.files.wordpress.com/2012/09/100_7385.jpg https://earthchange.files.wordpress.com/2012/10/navyfuturemap1.jpg |
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Posted: 1/11/2019 3:23:31 AM EST
[#7]
Quote HistoryQuoted: Thanks. Have any good info about how solar/cosmic radiation effect flight crews? Researchers have long known that cosmic rays penetrate the hulls of commercial aircraft. At typical cruising altitudes, pilots, flight attendants and passengers typically receive a dose rate 40 to 70 times higher than natural radiation on the ground below. The higher a plane flies, the more radiation it receives. This has prompted the International Commission on Radiological Protection (ICRP) to classify pilots as occupational radiation workers–just like nuclear power plant engineers. During a typical polar flight from Chicago to Beijing, for instance, members of the flight crew can receive a whole body exposure equivalent to two chest x-rays. Multiplied over the course of a career, this can cause problems such as increased risk of cancer and possibly cataracts. http://spaceweather.com/ https://www.radsonaplane.com/the-science https://spaceweatherarchive.com/2018/06/15/what-is-e-rad/ 
https://www.radsonaplane.com/hot-flights Every day we monitor approximately 1400 flights criss-crossing the 10 busiest routes in the continental USA. Typically, this includes more than 80,000 passengers per day. Using E-RAD, we calculate the radiation exposure coming from cosmic rays for every single flight. The Hot Flights Table is a daily summary of the results. Our Hot Flights Table shows: the 5 charter flights with the highest dose rates the 5 commercial flights with the highest dose rates the 5 commercial flights with near-average dose rates the 5 commercial flights with the lowest dose rates. Daily Hot Flights: January 10, 2019 Ordered by Dose Rate Top Commercial Flight Delta 1802 LA to NY Dose rate 61.2 times that of sea level Cancer prevalence among flight attendants compared to the general population |
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Posted: 1/11/2019 3:29:43 AM EST
[#8]
Quote HistoryQuoted:
White straight males. Who like boobs. And own guns. That's whose fault it is. Now off to PornHub. |
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Posted: 1/11/2019 10:46:05 AM EST
[#9]
Quote HistoryQuoted:
It is certainly possible. Just how much ice have we lost up there in say the last 40 years? Perma-frost loss also? Is it enough? Quote HistoryQuoted:
Quoted:
Quoted:
They've said for years that the poles could flip flop.  Do you think it would have an impact? Just a question Just how much ice have we lost up there in say the last 40 years? Perma-frost loss also? Is it enough? |
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Posted: 1/11/2019 11:01:18 AM EST
[#10]
The pole reversal is not the real issue per se, the fact that since the poles have been reversing(1600's), the Magnetosphere has been weakening faster and faster is the issue. Without a strong Magnetosphere we are subject to space weather that could alter life as we know it, that is the issue!
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Posted: 1/11/2019 11:35:58 AM EST
[#11]
Quote HistoryQuoted: Damn. I need to write some stuff down. |
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Posted: 1/11/2019 11:47:24 AM EST
[#12]
Quote HistoryQuoted:
E-RAD is a new model of aviation radiation from Spaceweather.com and Earth to Sky Calculus. It can predict how much cosmic radiation a passenger will absorb flying on any commercial jet across the USA. Researchers have long known that cosmic rays penetrate the hulls of commercial aircraft. At typical cruising altitudes, pilots, flight attendants and passengers typically receive a dose rate 40 to 70 times higher than natural radiation on the ground below. The higher a plane flies, the more radiation it receives. This has prompted the International Commission on Radiological Protection (ICRP) to classify pilots as occupational radiation workers–just like nuclear power plant engineers. During a typical polar flight from Chicago to Beijing, for instance, members of the flight crew can receive a whole body exposure equivalent to two chest x-rays. Multiplied over the course of a career, this can cause problems such as increased risk of cancer and possibly cataracts. http://spaceweather.com/ https://www.radsonaplane.com/the-science https://spaceweatherarchive.com/2018/06/15/what-is-e-rad/ https://spaceweatherarchive.files.wordpress.com/2018/06/eradvreality.png?w=1024 https://www.radsonaplane.com/hot-flights Every day we monitor approximately 1400 flights criss-crossing the 10 busiest routes in the continental USA. Typically, this includes more than 80,000 passengers per day. Using E-RAD, we calculate the radiation exposure coming from cosmic rays for every single flight. The Hot Flights Table is a daily summary of the results. Our Hot Flights Table shows: the 5 charter flights with the highest dose rates the 5 commercial flights with the highest dose rates the 5 commercial flights with near-average dose rates the 5 commercial flights with the lowest dose rates. Daily Hot Flights: January 10, 2019 Ordered by Dose Rate Top Commercial Flight Delta 1802 LA to NY Dose rate 61.2 times that of sea level Cancer prevalence among flight attendants compared to the general population Quote HistoryQuoted:
Quoted: Thanks. Have any good info about how solar/cosmic radiation effect flight crews? Researchers have long known that cosmic rays penetrate the hulls of commercial aircraft. At typical cruising altitudes, pilots, flight attendants and passengers typically receive a dose rate 40 to 70 times higher than natural radiation on the ground below. The higher a plane flies, the more radiation it receives. This has prompted the International Commission on Radiological Protection (ICRP) to classify pilots as occupational radiation workers–just like nuclear power plant engineers. During a typical polar flight from Chicago to Beijing, for instance, members of the flight crew can receive a whole body exposure equivalent to two chest x-rays. Multiplied over the course of a career, this can cause problems such as increased risk of cancer and possibly cataracts. http://spaceweather.com/ https://www.radsonaplane.com/the-science https://spaceweatherarchive.com/2018/06/15/what-is-e-rad/ https://spaceweatherarchive.files.wordpress.com/2018/06/eradvreality.png?w=1024 https://www.radsonaplane.com/hot-flights Every day we monitor approximately 1400 flights criss-crossing the 10 busiest routes in the continental USA. Typically, this includes more than 80,000 passengers per day. Using E-RAD, we calculate the radiation exposure coming from cosmic rays for every single flight. The Hot Flights Table is a daily summary of the results. Our Hot Flights Table shows: the 5 charter flights with the highest dose rates the 5 commercial flights with the highest dose rates the 5 commercial flights with near-average dose rates the 5 commercial flights with the lowest dose rates. Daily Hot Flights: January 10, 2019 Ordered by Dose Rate Top Commercial Flight Delta 1802 LA to NY Dose rate 61.2 times that of sea level Cancer prevalence among flight attendants compared to the general population |
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Posted: 1/11/2019 11:56:53 AM EST
[#13]
Quote HistoryQuoted:
Not sure if serious Quote HistoryQuoted:
Quoted:
True north is about 15 degrees off from the magnetic north due to huge iron deposits in northern Canada.  Attached FilePicture from Magnetic declination explained |
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Posted: 1/11/2019 1:33:22 PM EST
[#14]
Quote HistoryQuoted:
The declination in the US varies by location. https://www.AR15.Com/media/mediaFiles/222502/declination-us_jpg-803939.JPG Picture from Magnetic declination explained The main thing you can do with a compass, no matter where it points, so long as it point the same way all the time, is keep a straight course. If you happen to have a topo map, this is nice, too. Lost people tend to wander around in circles. They call that describing a widening gyre. 2. If you wear an analog watch, you can always find true north and calibrate your mag compass to that the next time the sun is up. 3. If you put mercury in a loaf of white bread, like the quality eat, it will float to the body and stop. None of that low-down corn pone 4. Mark Twain is hilarious. 
5. If you have no idea what the fuck you are doing and find yourself lost, please stop walking. Those of us on the search teams are pretty good at covering an area, once. Sit your ass the fuck down, please. |
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Posted: 1/11/2019 1:47:49 PM EST
[#15]
Quote HistoryQuoted:
So what would the results be? No links, no videos, just a quick sentence or two. Longer term, shifting aurora patterns and changes in high energy solar and cosmic ray intensity and patterns. Even longer term, really difficult mapping of tectonic position and movements during the Anthropocene by whoever is around to study us. |
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Posted: 1/11/2019 1:50:42 PM EST
[#16]
Quote HistoryQuoted:
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Posted: 1/11/2019 1:55:18 PM EST
[#17]
Quote HistoryQuoted:
This is the real reason second lieutenants get lost... They're still using a 1970's map of Columbus with an inaccurate magnetic declination. |
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Posted: 1/11/2019 2:01:04 PM EST
[#18]
Quote HistoryQuoted:
The pole reversal is not the real issue per se, the fact that since the poles have been reversing(1600's), the Magnetosphere has been weakening faster and faster is the issue. Without a strong Magnetosphere we are subject to space weather that could alter life as we know it, that is the issue! This came up the last time we had the "Poles are going to reverse!" panic, probably when Bush was prsident. To see which other disasters we need to worry about, read old versions of Popular Mechanics and Poular 'Science', they're thick with disaster woe at times. The worries seem to recycle, like fads from 3-4 decades ago. |
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Posted: 1/11/2019 2:02:12 PM EST
[#19]
Too many people in California. It's getting ready to slide into the Pacific
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Posted: 1/11/2019 2:11:43 PM EST
[#20]
Quote HistoryQuoted:
Our maps had a printed 2ºW declination. At the time we were using them, it was actually 6ºW. It's now 9ºW for that same location. Quote HistoryQuoted:
Quoted:
This is the real reason second lieutenants get lost... They're still using a 1970's map of Columbus with an inaccurate magnetic declination. 2nd tip: Take the map and note the landmarks, use the compass to keep a straight line. 3. Buy a goddamn sextant and know how to use it. |
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Posted: 1/11/2019 2:17:45 PM EST
[#21]
Quote HistoryQuoted:
They've said for years that the poles could flip flop. |
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Posted: 1/11/2019 2:18:43 PM EST
[#22]
This crisis is bullshit. Fucking pole-shifting is not nearly as sexy as the SMOD. How are we going to save the planet by landing a team of oil-drillers on a pole shift?
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Posted: 1/11/2019 2:28:29 PM EST
[#23]
Quote HistoryQuoted:
During a typical polar flight from Chicago to Beijing, for instance, members of the flight crew can receive a whole body exposure equivalent to two chest x-rays. Multiplied over the course of a career, this can cause problems such as increased risk of cancer and possibly cataracts. That's exceptionally misleading to the majority of people who don't have at least a smidge of basic statistics knolwedge. Say that we test 5000 pilots and flight attendants for cancer rates, or even cancer deaths, as compared to 5000 people of similar demographic backgrounds who are on the ground, or at least 99.9% of the time with only occasional airline flights. And we find that the airline flight employees have a prevelance ratio, or increased incident rate of cancer that's 1.5 over the control group on the ground. HOLY SHIT 150% MOAR CANCER! ZOMG WTFBBQONEELEVENTY! Not so fast. The aggregate cancer death rate for all Americans is about 1.6% a 1.5 prevalence rate increase is just 50%. 1.0 is "times one" being even. Random example: 347 x 1 = 347. 1.5 x 347 = 520.5 So in reality it's a 50% increase in that baseline cancer death rate of 1.6%. So now it's 2.4% , or just an .8% increase in overall cancer death. If I were to actually age sort the control group of the ground based people for the age ranges that actually have airline flight jobs, instead of everybody. i.e. newborns to 100 years old, the increase is even lower, around .5% higher odds of there being more cancer in your future than some ground-based person. |
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Posted: 1/11/2019 2:33:33 PM EST
[#24]
Quote HistoryQuoted:
Except that such statistics are a preference rate or ratio. That's exceptionally misleading to the majority of people who don't have at least a smidge of basic statistics knolwedge. Say that we test 5000 pilots and flight attendants for cancer rates, or even cancer deaths, as compared to 5000 people of similar demographic backgrounds who are on the ground, or at least 99.9% of the time with only occasional airline flights. And we find that the airline flight employees have a prevelance ratio, or increased incident rate of cancer that's 1.5 over the control group on the ground. HOLY SHIT 150% MOAR CANCER! ZOMG WTFBBQONEELEVENTY! Not so fast. The aggregate cancer death rate for all Americans is about 1.6% a 1.5 prevalence rate increase is just 50%. 1.0 is "times one" being even. Random example: 347 x 1 = 347. 1.5 x 347 = 520.5 So in reality it's a 50% increase in that baseline cancer death rate of 1.6%. So now it's 2.4% , or just an .8% increase in overall cancer death. If I were to actually age sort the control group of the ground based people for the age ranges that actually have airline flight jobs, instead of everybody. i.e. newborns to 100 years old, the increase is even lower, around .5% higher odds of there being more cancer in your future than some ground-based person. Quote HistoryQuoted:
Quoted:
During a typical polar flight from Chicago to Beijing, for instance, members of the flight crew can receive a whole body exposure equivalent to two chest x-rays. Multiplied over the course of a career, this can cause problems such as increased risk of cancer and possibly cataracts. That's exceptionally misleading to the majority of people who don't have at least a smidge of basic statistics knolwedge. Say that we test 5000 pilots and flight attendants for cancer rates, or even cancer deaths, as compared to 5000 people of similar demographic backgrounds who are on the ground, or at least 99.9% of the time with only occasional airline flights. And we find that the airline flight employees have a prevelance ratio, or increased incident rate of cancer that's 1.5 over the control group on the ground. HOLY SHIT 150% MOAR CANCER! ZOMG WTFBBQONEELEVENTY! Not so fast. The aggregate cancer death rate for all Americans is about 1.6% a 1.5 prevalence rate increase is just 50%. 1.0 is "times one" being even. Random example: 347 x 1 = 347. 1.5 x 347 = 520.5 So in reality it's a 50% increase in that baseline cancer death rate of 1.6%. So now it's 2.4% , or just an .8% increase in overall cancer death. If I were to actually age sort the control group of the ground based people for the age ranges that actually have airline flight jobs, instead of everybody. i.e. newborns to 100 years old, the increase is even lower, around .5% higher odds of there being more cancer in your future than some ground-based person. |
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Posted: 1/11/2019 2:34:56 PM EST
[#25]
I look at how it was and how they say it will be. Man I got the best time period of all. What luck.
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Posted: 1/11/2019 2:50:40 PM EST
[#26]
This is an excellent diagram explaining just how TINY natural and air travel exposures are as compared to actual radiation exposure safely limits. And how TINY those safety limits are as compared yo the amount of radiation that will actually sicken you or kill you directly.
https://xkcd.com/radiation/ Of course, the cumulative lifetime dose of the lower rates from normal sources, and the impact they have on the odds of you eventually getting cancer isn't nothing, but it's not big either. And of course, a fraction of a percent higher cancer risk can easily be swallowed up by being a fatty, having a heart attack, or dying in a car crash. (Shrug...) |
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Posted: 1/11/2019 2:51:32 PM EST
[#27]
Quote HistoryQuoted: Once again, the question is what a redistribution of an unknown number of trillion of tons of glacial ice were to be done over a fairly short period of time and what effect that would have on the earth. |
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Posted: 1/11/2019 2:51:47 PM EST
[#28]
Quote HistoryQuoted:
Pro tip: every time, check the declination today, before embarkation to an AO. 2nd tip: Take the map and note the landmarks, use the compass to keep a straight line. 3. Buy a goddamn sextant and know how to use it. Quote HistoryQuoted:
Quoted:
Quoted:
This is the real reason second lieutenants get lost... They're still using a 1970's map of Columbus with an inaccurate magnetic declination. 2nd tip: Take the map and note the landmarks, use the compass to keep a straight line. 3. Buy a goddamn sextant and know how to use it. Plus, a Topo map marked up that way after a hunt or even a backpacking trip is an awesome wallhanger to go with photos or a mount. Useful when going back to same area a few years later, saves time by comparing what changed. More people need to know how to properly fold a map to show their immediate area in a small package, and use a compass. Tablet/phone/GPS should be a convenient addition to navigation skills, not the sole source. Spend a little money for a 100k of the big area you're going to, and a custom 24k of the 8x11 mile specific area at $20 each for full size 2'x3' maps. Learn how to use just a compass and map to plan and navigate. Learn Orienteering, it's a fading skill now that the schools aren't showing it, let alone cub/boy scouts common anymore. |
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Posted: 1/11/2019 2:52:15 PM EST
[#29]
It has changed for 4 billion years and will keep changing... next.
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Posted: 1/11/2019 3:16:48 PM EST
[#30]
Quote HistoryQuoted:
Wait, ice is magnetic?  Plastic Comb bending Water! |
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Posted: 1/11/2019 3:18:50 PM EST
[#31]
Quote HistoryQuoted: People need to remember a physical topo map and compass are important. Batteries/power aren't unlimited and always available. An extra 8 oz isn't going to end it all. A 24k topo map and compass is how I et around once I'm in the area, it's faster than the phone or GPS, doesn't emit light, sound, etc. Phone/tablet maps are cool between outings, but when looking around, it's a lot easier to draw on a topo map where you've seen signs of the animals you're looking for, which landmarks are easiest to see, guesstimating how steep the ravine you'll need to cross is if you take the shot, etc. Plus, a Topo map marked up that way after a hunt or even a backpacking trip is an awesome wallhanger to go with photos or a mount. Useful when going back to same area a few years later, saves time by comparing what changed. More people need to know how to properly fold a map to show their immediate area in a small package, and use a compass. Tablet/phone/GPS should be a convenient addition to navigation skills, not the sole source. Spend a little money for a 100k of the big area you're going to, and a custom 24k of the 8x11 mile specific area at $20 each for full size 2'x3' maps. Learn how to use just a compass and map to plan and navigate. Learn Orienteering, it's a fading skill now that the schools aren't showing it, let alone cub/boy scouts common anymore. 
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Posted: 1/11/2019 3:25:03 PM EST
[#32]
Quoted:
Trump's fault? https://www.nature.com/articles/d41586-019-00007-1 On 15 January, they are set to update the World Magnetic Model, which describes the planet’s magnetic field and underlies all modern navigation, from the systems that steer ships at sea to Google Maps on smartphones. It has nothing to do with the magnetic field. The field has also been weakening for many years now for unknown reasons. While we can extract field reversals from older rocks the resolution is not there to determine how long the field actually takes to flip. |
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Posted: 1/11/2019 3:30:48 PM EST
[#33]
@brass
My mag compass has a declinometer which is great for long shots. My sextant is not certified for navigation, but I tried it it out for shits and giggles and it's within a degree, and was less than 40$. Lemme see... Here we go.  Attached File Attached File |
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Posted: 1/11/2019 3:35:52 PM EST
[#34]
And, you should all know know this:Why analog is best in a watch
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Posted: 1/11/2019 3:44:56 PM EST
[#35]
Quote HistoryQuoted:
@brass My mag compass has a declinometer which is great for long shots. My sextant is not certified for navigation, but I tried it it out for shits and giggles and it's within a degree, and was less than 40$. Lemme see... Here we go. https://www.AR15.Com/media/mediaFiles/468293/sextant_jpg-804147.JPG https://www.AR15.Com/media/mediaFiles/468293/compass_jpg-804152.JPG I have a compass similar to that, one is tritium that's getting dim, the other has some long glow phosphors glow in dark. Crosshair and mirror (lensatic) are requirements if trying to find exact location, instead of guess within 1 mile-ish. I have a strong love for topo maps, gotten many from mytopo.com in waterproof far cheaper than I can print them that large myself for. I also have all the topo files in several formats from GIS, Garmin, and Delorme if I want to print a 8x10 page one to show somebody directions. GIS is coolest, but can get expensive if very recent data is desired, isn't as user friendly as DeLorme, they all have pros and cons, though. GIS I tend to add too much and clutter it to death. Problem with sextant is The Book needed to say what time it's supposed to be where you are supposed to be. Why a non-pendulum clock was important for open ocean navigation which I can't do at all. Closest thing I have to a sextant is "Sky View" app on my phone.
Are you also demanding about time? All clocks in house must tick to the next minute at the exact same second? The only one in my house not radio set is the oven, I have a well managed NTP server cluster and WWVB data weak RF transmitter for exact time within microseconds to set everything in the house, got tired of near wall ones and watches not getting signal. |
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Posted: 1/11/2019 3:45:22 PM EST
[#36]
Nautical miles are 6000 feet instead of 5280 feet mainly to make the math easy, like assuming a horse is a sphere, but it turns out it works, too. One minute of arc is 900 miles and one second is 15. 6000 foot nautical miles.
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Posted: 1/11/2019 3:50:40 PM EST
[#37]
BUT mUh FlAt EaRtH!
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Posted: 1/11/2019 3:53:29 PM EST
[#38]
Quote HistoryQuoted:
Nautical miles are 6000 feet instead of 5280 feet mainly to make the math easy, like assuming a horse is a sphere, but it turns out it works, too. One minute of arc is 900 miles and one second is 15. 6000 foot nautical miles.
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Posted: 1/11/2019 3:55:13 PM EST
[#39]
Quote HistoryQuoted:
Nice gear! *other than keyboard* I have a compass similar to that, one is tritium that's getting dim, the other has some long glow phosphors glow in dark. Crosshair and mirror (lensatic) are requirements if trying to find exact location, instead of guess within 1 mile-ish. I have a strong love for topo maps, gotten many from mytopo.com in waterproof far cheaper than I can print them that large myself for. I also have all the topo files in several formats from GIS, Garmin, and Delorme if I want to print a 8x10 page one to show somebody directions. GIS is coolest, but can get expensive if very recent data is desired, isn't as user friendly as DeLorme, they all have pros and cons, though. GIS I tend to add too much and clutter it to death. Problem with sextant is The Book needed to say what time it's supposed to be where you are supposed to be. Why a non-pendulum clock was important for open ocean navigation which I can't do at all. Closest thing I have to a sextant is "Sky View" app on my phone.
Are you also demanding about time? All clocks in house must tick to the next minute at the exact same second? The only one in my house not radio set is the oven, I have a well managed NTP server cluster and WWVB data weak RF transmitter for exact time within microseconds to set everything in the house, got tired of near wall ones and watches not getting signal. Quote HistoryQuoted:
Quoted:
@brass My mag compass has a declinometer which is great for long shots. My sextant is not certified for navigation, but I tried it it out for shits and giggles and it's within a degree, and was less than 40$. Lemme see... Here we go. https://www.AR15.Com/media/mediaFiles/468293/sextant_jpg-804147.JPG https://www.AR15.Com/media/mediaFiles/468293/compass_jpg-804152.JPG I have a compass similar to that, one is tritium that's getting dim, the other has some long glow phosphors glow in dark. Crosshair and mirror (lensatic) are requirements if trying to find exact location, instead of guess within 1 mile-ish. I have a strong love for topo maps, gotten many from mytopo.com in waterproof far cheaper than I can print them that large myself for. I also have all the topo files in several formats from GIS, Garmin, and Delorme if I want to print a 8x10 page one to show somebody directions. GIS is coolest, but can get expensive if very recent data is desired, isn't as user friendly as DeLorme, they all have pros and cons, though. GIS I tend to add too much and clutter it to death. Problem with sextant is The Book needed to say what time it's supposed to be where you are supposed to be. Why a non-pendulum clock was important for open ocean navigation which I can't do at all. Closest thing I have to a sextant is "Sky View" app on my phone.
Are you also demanding about time? All clocks in house must tick to the next minute at the exact same second? The only one in my house not radio set is the oven, I have a well managed NTP server cluster and WWVB data weak RF transmitter for exact time within microseconds to set everything in the house, got tired of near wall ones and watches not getting signal. 
My clocks are 24hr dial Quartz. One is local, one is set to Greenwich mean Zulu. My watch is a solar atomic 200 meter Gshock analog with digital complications.
Here's the house clocks.  Attached FileThe breakthrough in navigation wasn't about cartography and so on, it was accurate time keeping. A sextant is absolutely useless if you don't know what time or day it is fairly accurately. |
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Posted: 1/11/2019 4:04:38 PM EST
[#40]
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Posted: 1/11/2019 8:22:53 PM EST
[#41]
Quote HistoryQuoted:
Rome and Ancient Greece didn't have the television, media or, Internet. We are under a global change. George bush Sr. Said it himself on TV. They want a new world order. Quote HistoryQuoted:
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Let us all repent and ask for forgiveness. This is the beginning... And I'm not a very religious person. It's just obvious. George bush Sr. Said it himself on TV. They want a new world order. |
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Posted: 1/12/2019 10:15:38 AM EST
[#42]
 Red Sun Rising - Deathwish (Official Music Video) |
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Posted: 1/12/2019 10:29:41 AM EST
[#43]
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Posted: 1/12/2019 10:33:30 AM EST
[#44]
Quote HistoryWoman on phone wanting to be recued from a cornfield maze....
911 dispatcher "Can I talk to your husband?" 
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Posted: 1/12/2019 10:39:27 AM EST
[#45]
It's Toxic Magnetism. We've got to learn to resist it. I suggest signs bringing people's attention to this threat.
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Posted: 1/12/2019 10:53:13 AM EST
[#46]
Could the extraction of iron ore from Earth's crust possibly effect the magnetic field? You have all this iron in the crust. you take it out and make stuff with it. That redistributes the iron to other areas increasing the amount of iron in the receiving areas while decreasing the amount in the mining areas.
No knowledge about magnets, magnetic fields, or geology here, just wondering. |
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Posted: 1/12/2019 10:57:01 AM EST
[#47]
Didn't read all 5 pages, don't know if this has been brought up, but Earths magnetic poles shift about every 100k years. They know this by looking at rock formations and the way metal like iron line up in them. We are over due for another shift.
Compass's will point South when that happens instead of North. Always has happened always will happen. No idea what effect this has on things like weather, but this combined with changes in the Earth's elliptical orbit (it gets elongated over time like a stretching rubber band, then pulls back over hundreds of thousands of years)... probably what causes the ice ages to start and end. We are at the very end of the last ice age. So of course its going to warm for a while for those pushing the man-made global warming scam. |
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Posted: 1/12/2019 11:36:40 AM EST
[#48]
Quote HistoryQuoted:
Didn't read all 5 pages, don't know if this has been brought up, but Earths magnetic poles shift about every 100k years. They know this by looking at rock formations and the way metal like iron line up in them. We are over due for another shift. Compass's will point South when that happens instead of North. Always has happened always will happen. No idea what effect this has on things like weather, but this combined with changes in the Earth's elliptical orbit (it gets elongated over time like a stretching rubber band, then pulls back over hundreds of thousands of years)... probably what causes the ice ages to start and end. We are at the very end of the last ice age. So of course its going to warm for a while for those pushing the man-made global warming scam. It's odd that thousands of years ago the Israelis reported having a day with four extra hours of light, and the same time the Chinese say they had 4 extra hours of darkness... |
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Posted: 1/12/2019 12:05:31 PM EST
[#49]
Quote HistoryQuoted:
That's why they are assholes. 
TC |
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Posted: 1/12/2019 12:29:25 PM EST
[#50]
TC |
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