Rosetta: Languages and Space Probes

Linguists estimate that around 50% of the worlds languages will go extinct by the end of this century (ref). Just as John Hammond used the the DNA preserved in ancient dino-hungry mosquitoes to revive extinct dinosaurs in Jurassic Park...

...future generations may use the information encoded on a three inch disk, known as a Rosetta disk, to bring long-dead languages back to life. At least that's the idea. The Rosetta disk project was hatched by people at the Long Now Foundation, who used technology developed at Los Alomos National labs to miniaturize 13,500 pages of text from over 1,500 human languages onto a three inch disk of nickel. I like to think about these disks as language time capsules.

The teaser-side of a Rosetta disk. via the Long Now Foundation.

"Barely Bad Bananas" or "Where Does Background Radiation Come From???"

The totally normal banana that this totally normal monkey is eating is radioactive, but so is the monkey!

Radioactive Monkey Eating Radioactive Banana, from Arne Bevaart

Why Fire is Cool - entry #4 - Ancient Energy Unleasher

When you heat a can of beans on a campfire, you are transforming the chemical energy contained in the firewood into thermal energy (heat).  As you are in your tent drifting off to sleep and the bean-induced-fart-chorus begins, you may ask yourself where the energy in that firewood came from.  As with most energy sources, the answer is that it came from the sun!  That firewood was once a tree that was merrily pursuing its life's purpose of fashioning itself a body out of carbon dioxide, water, and sunlight, in a process known as photosynthesis.

Photosynthesis requires an energy source (sunlight), therefore the products of photosynthesis (wood, etc) can be thought to contain that photosynthesized energy.  When you burn firewood, you are essentially running photosynthesis in reverse, releasing the energy from the sun that the tree went through so much trouble to absorb.

So, fire is cool because it allows us to unleash energy from the sun in small amounts, whenever we please, regardless of when that energy first arrived on earth.  In the case of firewood, that energy arrived anywhere from a few years to a few thousand years ago, depending on how long the tree had lived.

The Llangernyw Yew, a 4,000-5,000 year old tree.

This same concept applies to anything else we burn, even fossil fuels, which is where things get crazy.