Anyone have any random nerdy facts?

[ljwilley]

Rocketry related or not, post random facts that you don't think many other people know.

I'll start:

Birds are not effected by spicy peppers. They can eat as many Carolina reapers as they want with no reaction!

 

[jsdemar]

 

[OzHybrid]

Battery sizes for coin type Lithium.
CR2030 for example. Coin Round. (coin shaped and round)..... Last 2 digits are thickness in 0.1mm increments. Leading digits are diameter in mm.
so Coin Round 20mm dia 3.0mm thick.
SR is Silver chemistry Round. Same but 1.55V usually for watches or old cameras..... SR726 would be 7mm 2.6mm thick silver chemistry.
The LR44 would be an exception...... Commonly used for electronic digital verniers.
So now you just have to buy a LR44, put it in your verniers and measure the battery in your watch with some weird number on it and search on Ebay for SR(Dia)(Thickness to 2 sig digits and multiply X10) if it's a small one or CR if it's a big one Lithium.....Simple....

 

[Azamiryou]

Wombats poop cubes.

 

[lr64]

Pretty much all steel alloys have the same elastic modulus. Ditto aluminum alloys. So music wire isn't any stiffer, just stronger. Stiffness and strength aren't necessarily related.

 

[rocket_troy]

Pretty much all steel alloys have the same elastic modulus. Ditto aluminum alloys. So music wire isn't any stiffer, just stronger. Stiffness and strength aren't necessarily related.

ehhhh... you're 16 days late for that one...

TP

 

[kuririn]

Hydrogen is the most abundant element in the universe, but not on Earth due to its light weight, which allows the gas to just float off into space.
According to Bing.

 

[Swifted]

woodpeckers tongues wrap around their brains

 

[lr64]

ehhhh... you're 16 days late for that one...

TP

How is it late? What did I miss?

 

[dhbarr]

Trees are made of mostly air.

 

[lr64]

BTW, there are only about 10^81 electrons in the universe. Don't waste them!


(Well, the observable universe, anyway, and some people have estimated 10^80. Maybe their vision is less than 20-20. ;-)

 

[tsmith1315]

Your tears have approximately the same index of refraction as polymethyl methacrylate.

 

[rocket_troy]

How is it late? What did I miss?

It's an April 1st prank. The statement is completely plastered with BS.

TP

 

[MarsLander]

There was volcanic activity on the moon when dinosaurs were alive.

 

[rocket_troy]

It's an April 1st prank. The statement is completely plastered with BS.

TP

No, I take it all back. I was erroneously comparing specialty moly and Ti grades in to that which I've been investigating lately. Apologies for that.

TP

 

[KenECoyote]

Birds are not effected by spicy peppers. They can eat as many Carolina reapers as they want with no reaction!

This is so that they help spread the seeds of the plant.

 

[KenECoyote]

Pistol shrimps shoot out a cavitation bubble from their claws as hot as the sun and is considered by many to be the loudest sound created by any animal.

Also they're apparently delicious.

 

[Hobie1dog]

Trees are made of mostly air.

until one falls on your house

 

[les]

Here is something real nerdy.....
The original F18 Flight Control Computer Software was developed using Terminets, Paper Tape Readers, and Core Memories

 

[Azamiryou]

The rest of the planets in the solar system can fit between the Earth and the moon.

 

[jsdemar]

A flock of swallows is called a gulp.

 

[VernK]

Five of the most important numbers in mathematics all in one simple equation. How beautiful is that!

 

[teepot]

Yes, between the branches they are mostly air. But a golf ball rarely make it through them.

 

[Antares JS]

The hard plastic-wrapped tips on the ends of shoelaces are called "aglets."

 

[Antares JS]

The constellations of the northern sky were named by the ancient Greeks in antiquity, and are thus mostly named after Greek mythological figures.

The constellations of the southern sky were named by renaissance-era seafarers who were seeing the southern sky for the first time, so a bunch of the constellations are named for navigational and scientific instruments, along with an altar and a cross.

 

[NTP2]

There is more livestock than all warm blooded wildlife combined!

 

[jsdemar]

There is more livestock than all warm blooded wildlife combined!

By mass but not my number. Unless you consider rodents as livestock.

 

[NTP2]

By mass but not my number. Unless you consider rodents as livestock.

Well yes but I don’t know if that makes it better, cows are just really really fat.

 

[Azamiryou]

If you take the entire human population of earth and lay them out head-to-toe in a line toward the moon, most of them will die.

 

[jsdemar]

Well yes but I don’t know if that makes it better, cows are just really really fat.

Rats are smarter than cows. “You are what you eat!”