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144 votes

Is the Gregorian calendar the "most accurate calendar ever devised"?

Is Neil Tyson's claim that the Gregorian calendar is the “most accurate calendar ever devised” true? TL; DR: The Gregorian calendar qualifies as "most accurate" if one defines "most ...
David Hammen's user avatar
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115 votes
Accepted

Did al-Ghazali lead to decline of science in Islam as Neil Tyson claims?

This is an old myth from the days of Orientalism. Unfortunately Wikipedia is often edited precisely by people who have simply seen popular accounts by people like Tyson (or Skeptoid podcast, or The ...
Avery's user avatar
  • 45.8k
52 votes

Is the Gregorian calendar the "most accurate calendar ever devised"?

False. That little outfit called NASA says this: The Persian Calendar, also known as the Iranian Calendar, is made available in a similar fashion for it is the most accurate of calendars. These ...
LangLаngС's user avatar
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23 votes

Is the Gregorian calendar the "most accurate calendar ever devised"?

It's a fair statement to make, even if not true (and especially not when taken out of context). From the context it's apparent that he meant predictive calendars in widespread use. Also one can imply ...
Daniel Balas's user avatar
23 votes
Accepted

Can one estimate accurately the time until sunset using the width of one's fingers?

Nearly True This works, but there is one detail missing, and depending on your latitude the picture could be misleading. The sun moves approximately one finger width across the sky each 15 minutes, ...
Jack B's user avatar
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20 votes
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Can you extract over 500 gallons of water from the air a day for a few cents per bottle?

Can you extract over 500 gallons of water from the air a day for a few cents per bottle? Well, first, the "500 gallons" part is an irrelevant distraction. If there's a machine that can extract 1 ...
Acccumulation's user avatar
17 votes

Is the Gregorian calendar the "most accurate calendar ever devised"?

Basically, Tyson's claim is roughly true considering that more accurate alternatives in actual use are either: observation-based, i.e. tweak the calendar at is goes (current Persian i.e. Solar Hijri ...
Dolphin 613 Motorboat's user avatar
14 votes
Accepted

Is Intelligent Design falsifiable?

They have shown Evolution is falsifiable. Intelligent Design lacks its own hypotheses or theories to make predictions or explain observations. They instead focus on trying to falsify Evolution. If ...
Schwern's user avatar
  • 18.3k
13 votes

Has Newton's Third Law of motion been "debunked" and are there discrepancies in formulas of variation of mass with velocity?

He makes the claim that Newton's Third Law is only true in the limited case of elastic collisions, giving as counter examples inelastic collisions (ball of chewing gum deforms and sticks to wall) and ...
Tom Goodfellow's user avatar
11 votes
Accepted

Is Christianity testable?

The question isn't so much "is Christianity testable" but "is this a valid test of the supernatural nature of Christianity?" No. First, anacdotes are not evidence. "I was at a ...
Schwern's user avatar
  • 18.3k
9 votes

Is gender studies a science?

According to the University of California, Berkeley website: The field of gender and women’s studies emerged from the contemporary feminist movement with the initial goal of bringing women and ...
elliot svensson's user avatar
7 votes

Did al-Ghazali lead to decline of science in Islam as Neil Tyson claims?

Ghazali actually praised the disciplines of math and science saying they are necessary to a prosperous society. Sciences whose knowledge is deemed fard kifayah comprise [all] sciences which are ...
HopDavid's user avatar
  • 170
4 votes

Did some people claim in the 1970s that metric road signs would facilitate a ‘Russian invasion’?

Latest date and not the same claim, but... quote from Meet the Sole Employee of the U.S. Metric Program: As the years went on, the Metric system wasn't only derided as confusing. It was a communist ...
Martín-Blas Pérez Pinilla's user avatar
3 votes

Can you extract over 500 gallons of water from the air a day for a few cents per bottle?

After a bit of research, I'm inclined to call this one plausible. From the XPRIZE site we find: Led by Architect David Hertz, https://davidhertzfaia.com with Rich Groden co-inventor of the ...
Roger's user avatar
  • 3,021
2 votes

Is the Gregorian calendar the "most accurate calendar ever devised"?

The problem with all calendars is that the Earth's rotation is not stable, but decreasing in an unpredictable and irregular way. Or, to put this an other way, the traditional Gregorian calendar is not ...
Roland's user avatar
  • 121
1 vote

Is the Gregorian calendar the "most accurate calendar ever devised"?

The baha'i calendar is defined to start each new year at the spring solstice. Whereas with most other calendars you can precalculate the date of say march 21st thousands of years in advance (eg to ...
eMBee's user avatar
  • 111

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