Pens In Space

Gotten from Tumblr. Source hidden to protect the guilty.

This is one that seems to be making the internet rounds lately. 

American astronauts actually started off using pencils when they first went into space. But they quickly realized that the higher oxygen content in the capsule make the highly flammable carbon in the graphite of the pencil even more... flammable. Which isn't really a good thing.

The tip of the pencils would also break off and float though the cabin. This was more than just a small hazard from potentially inhaling a small piece of sharp graphite -- the bits of pencil got into the equipment and caused shorts. 

NASA didn't actually invest any money into the Space Pen -- it was done by Paul C. Fisher, with his own money.* He was successful, creating the Fisher Space Pen used today by both the Americans and the Russians. ** He sold his pens to the Space Agencies for $2.95 apiece. 

Ages of Old

Georg von Rosen - Oden som vandringsman, 1886 (Odin, the Wanderer)

It seems to be a common belief that the current generation of people below the age of 20(ish) will be the first generation to live a shorter lifespan than their parents. It's often paired with the belief that every generation BEFORE this generation has lived a slightly longer time than the one before them (with a few exceptions due to massive wars).

So much so that I've heard people say that people died of old age in Ancient Egypt while in their mid-20s. And that you were "ancient" if you made it to 30. Now, obviously this can't be true for all of human history, or else people would have been dying of "old age" while they were still infants. [*]

But how much younger was "old age" back in "the day"?

Enstein's Math Fails

Also, he made pretty Rs.

As a child I believed that math was the study of what, exactly, it takes to break the hearts, minds, and souls of children.

 It nearly killed me to get though Math 111 in University. Never have I studied so hard for a B... and I say that as someone who took a medieval French literature class in French. (In complete honesty, I'm not that bad at math, I just have severe text anxiety and all of my math classes were graded entirely via exam performance.)

So I always derived some comfort from the fact that Albert Einstein had also struggled in math at school. This was, in my young opinion, proof of how messed up the school curriculum of judging one's ability to do something in a high stress environment (and the dreaded "answer as many questions as you can in 5 minutes" mini-quiz torture). His failure was my validation that math as it was taught in school was utterly useless.

You can imagine my disappointment when I learned that Einstein had never actually had any problems with math in school.