30 Amazing Facts That Sound Made Up, But Are Actually TRUE
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16-10-2015, 01:04 PM
RE: 30 Amazing Facts That Sound Made Up, But Are Actually TRUE
(16-10-2015 12:55 PM)Lightvader Wrote:  The 29th is
Volume tea spoon= 5 ml= 5gram
Molar mass water=18 gram/mol
Amount mole water= 5/18= ~0.25=2.5*10^-1
Avogadro's number=6*10^23
Total molecules water= 2.5*10^-1 * 6*10^23 = 15*10^22=1.5*10^23

Diameter water molecule = 3nm=3*10^-9m(thanks Google)

(1.5*10^23 ) *(3*10^-9)=4.5*10^14. m

30 billion miles= ~45 billion km= 4.5*10^10km= 4.5*10^13m

Either I erred somewhere, it the site is wrong

I'm too lazy to go through the calculations, but even if they're wrong, they're in the same general ballpark as you. The point is the same as the paper-folding example -- you can go from an extremely small distance to an extremely large one if you multiply it enough times. People don't want to believe it, but neither the paper nor the water molecule are infinitely thin -- they have a finite diameter, and you can reach any conceivable distance by multiplying that diameter by a sufficiently large number.
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16-10-2015, 01:11 PM (This post was last modified: 16-10-2015 01:15 PM by Lightvader.)
RE: 30 Amazing Facts That Sound Made Up, But Are Actually TRUE
17 is hard, I don't know the size of any subatomic particle and I don't know which subatomic particle. Do they mean a proton,a neutron, Ann electron , or do they mean the smaller ones like quarks and leptons and shit?

I don't really like going outside.
It's too damn "peopley" out there....
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16-10-2015, 01:16 PM
RE: 30 Amazing Facts That Sound Made Up, But Are Actually TRUE
The billiard ball earth thingy makes sense as well.

http://www.curiouser.co.uk/facts/smooth_earth.htm
The World Pool-Billiard Association Tournament Table and Equipment Specifications (November 2001)state: "All balls must be composed of cast phenolic resin plastic and measure 2 ¼ (+.005) inches [5.715 cm (+ .127 mm)] in diameter and weigh 5 ½ to 6 oz [156 to 170 gms]." (Specification 16.)
This means that balls with a diamenter of 2.25 inches cannot have any imperfections (bumps or dents) greater than 0.005 inches. In other words, the bump or dent to diameter ratio cannot exceed 0.005/2.25 = 0.0022222
The Earth's diameter is approximately 12,756.2 kilometres or 12,756,200 metres.
12,756,200 x 0.0022222 = 28,347.111
So, if a billiard ball were enlarged to the size of Earth, the maximum allowable bump (mountain) or dent (trench) would be 28,347 metres.
Earth's highest mountain, Mount Everest, is only 8,848 metres above sea level. Earth's deepest trench, the Mariana Trench, is only about 11 kilometres below sea level.
So if the Earth were scaled down to the size of a billiard ball, all its mountains and trenches would fall well within the WPA's specifications for smoothness.
However, it should be also be noted that if the Earth is not a perfect sphere. It is an oblate spheroid and should therefore also be tested for conformity to WPA specifications due to its shape. The distance between Earth’s poles is shorter than its diameter at the equator by approximately 43km. The maximum deviation with the respect to the Earth’s average diameter is half that distance, or 21.5km, which is within the scaled up WPA tolerance of 28.3km.
It can therefore be seen that the Earth would conform to WPA specifications for billiard balls if it was scaled down to the appropriate size, and it could said to be smoother than at least some billiard balls that would be permitted by the WPA.

I don't really like going outside.
It's too damn "peopley" out there....
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16-10-2015, 01:18 PM
RE: 30 Amazing Facts That Sound Made Up, But Are Actually TRUE
(16-10-2015 01:11 PM)Lightvader Wrote:  17 is hard, I don't know the size of any subatomic particle and I don't know which subatomic particle. Do they mean a proton,a neutron, Ann electron , or do they mean the smaller ones like quarks and leptons and shit?

Yeah, that one is not very precise. I'm pretty sure there are several orders of magnitude difference between the sizes of an electron and a proton, and I'm not sure anyone even knows how big quarks are (since they don't exist in isolation). And specks of dust are not uniform in size either. Every other one I've looked at turns out to be correct, though (or at least in the ballpark), so I would guess this one is also in the ballpark.
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16-10-2015, 03:30 PM
RE: 30 Amazing Facts That Sound Made Up, But Are Actually TRUE
Here's one:

Queen Cleopatra was born closer to the time of the moon landing, than the time of building the great pyramids.
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