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"The Astronomical Almanac is the direct descendant of the British and American navigational almanacs. The British Nautical Almanac and Astronomical Ephemeris had been published since 1766, and was renamed The Astronomical Ephemeris in 1960. The American Ephemeris and Nautical Almanac had been published since 1852. In 1981 the British and American publications were combined under the title The Astronomical Almanac."
More info is here: http://astro.ukho.gov.uk/nao/publicat/asa.html
Another source is this page: https://en.wikipedia.org/wiki/Newcomb%27s_Tables_of_the_Sun
"Newcomb's Tables were the basis for practically all ephemerides of the Sun published from 1900 through 1983, including the annual almanacs of the U.S. Naval Observatory and the Royal Greenwich Observatory. The tables are seldom used now; since the Astronomical Almanac for 1984 they have been superseded by more accurate numerically-integrated ephemerides developed at Jet Propulsion Laboratory, based on much more accurate observations than were available to Newcomb. Also, the tables did not account for the effects of general relativity which was unknown at the time. Nevertheless, his tabulated values remain accurate to within a few seconds of arc to this day." (emphasis added).
So the calculators have even been improved to become more and more accurate over time based on more recent observations, although the earlier calculations were remarkably correct also.
Modern ephemerides are often computed electronically from mathematical models of the motion of astronomical objects and the Earth. Even though the calculation of these tables was one of the first applications of mechanical computers, printed ephemerides are still produced, as they are useful when computational devices are not available.
Apparently, some "dark object", blocks the light from both the sun and moon on their respective eclipses, wich only appears during eclipses, for the rest of the time, it remains "invisible" [makes wavy gestures with fingers]
I was watching some videos made by flat earthers and they made comments about how nuclear weapons and nuclear power are hoaxes. Is this a commonly held belief among flat earthers or are those people more on the fringe? The reason why I ask is I was a Submarine Officer in the US Navy (all submarines in the US Navy are Nuclear) for 9 years and I was frequently in charge of the engine room and the reactor. I am curious how flat earthers could explain how my submarine could remain submerged for months at a time without ventilating if we didn't have a nuclear reactor. What power system could move a 7,000 ton submarine at 20+ knots without oxygen? All surface ship propulsion (with exception to Nuclear Aircraft Carriers) requires oxygen to function. Other countries use batteries or AIP for their submarines but their submarines are much smaller, weight much less, are much slower and can't stay submerged as long.
In Rounder's comment, you are the random stranger. He is saying that anyone who takes your advice is foolish.
I think it's important not to dissuade people from seeking orthodox medical treatments.
Tom what you are doing is borderline immoral, giving people diet tips is fine but you are doing harm to people of you discourage them for seeking professional help.
Anyone who takes medical advice from a random stranger on the internet has only themselves to blame for their "treatment" outcomes. Just saying.
Of course Trump is doing this to benefit himself. Are we really going to entertain the notion that this might be an altruistic act? He lost the right to the benefit of the doubt when he refused to both release his tax returns and divest from his holdings.
I didn't criticize Trekky's link. I criticized Trekky, who stated that Trump is going to save a whole lot of money with his plan, as if Trump were doing it for that purpose.
Again, you seem to be jumping to conclusions. Is the fact that the plan benefits Trump personally in doubt, and if not, what exactly was incorrect about Trekky's comment?
Trekky is apparently not aware of it, since his implication is that Trump is lowering taxes to benefit himself; when in truth a major part of why people voted him in is because they wanted personal and business taxes lowered.
Can't it both benefit Trump and be something voters wanted?
Still not seeing where you draw that conclusion. In fact the article Trekky links to directly states that he's trying to make good on his campaign promises so unless you think Trekky linked an article he didn't actually read I think we can safely assume he knows that it was one of Trump's key promises in the election.
According to the Wall Street Journal, Trump is planning to cut the top tax rate for owner-operated businesses from 39.6% to 15%, which would dramatically reduce taxes on Trump's real estate empire.
Lowering taxes has been part of the plan since the beginning and a huge part of his campaign. It's a big reason for why many people voted for him. Have you not been paying attention?
I'm having trouble seeing which part of Trekky's post indicates that he wasn't aware of this.
According to the Wall Street Journal, Trump is planning to cut the top tax rate for owner-operated businesses from 39.6% to 15%, which would dramatically reduce taxes on Trump's real estate empire.
So what angle is the "dish" tilted at compared to the earth?
You just stated that the "dish" was tilted. What is the dish you are are referring to in the above quote?Tom, I fully understand the change in the solar ecliptic throughout the year. I'm looking for an explanation of why then planetary ecliptic declines while the solar ecliptic inclines.
If one side of a dish is tilted downwards, the other side of the dish will be tilted upwards. If the sun is low, the planets seen at night will be high.
The gif you supplied is the apparent ecliptic of the sun. What is the "tilt" of the planetary plane?
By what degree?Tom, I fully understand the change in the solar ecliptic throughout the year. I'm looking for an explanation of why then planetary ecliptic declines while the solar ecliptic inclines.
If one side of a dish is tilted downwards, the other side of the dish will be tilted upwards.
Tom, I fully understand the change in the solar ecliptic throughout the year. I'm looking for an explanation of why then planetary ecliptic declines while the solar ecliptic inclines.
By what angle is the planetary plane tilted in the flat earth understanding?
The Sun, moon and earth are also not literally at those distances or those sizes. It's a diagram for illustration purposes. Don't be so obtuse - like most flat earth theorists, you completely ignore the concept of scale.
Venus can sometimes be seen in the daytime: http://www.space.com/24667-rare-venus-daytime-sky-views.html
Also Jupiter and maybe Mars: http://earthsky.org/space/10-surprising-things-to-see-in-the-daytime-sky
This site has a video with observations of Mercury, Mars and even Saturn in the daytime: http://sky.velp.info/daystars.php
If he didn't spend nearly every weekend golfing, I might want to believe you.Because he is so fragile nowadays that he can't stand to be roasted.
Trump's rallys are actually televised speeches to the american public to communicate his progress and intentions. That seems to me to be a lot more valuable, and a better use of his time, than attending some dinner party.
