A Damn Fine Collection Of Fascinating Photos And Videos

June 5, 2017 | 3 Comments » | Topics: Interesting

Cost of a Rattlesnake bite in America 

 

Google’s Server back in 1999

 

One of Google’s massive server farm, 2017

 

The apps in your smartphone cost $900,000 thirty years ago

fascinating photos

 

Keeping a heart alive during a transplant

 

 

A Leprosy sufferer from 1895

 

Backdraft

Fire needs three things in order to burn: heat, fuel, and oxygen. On a normal day your home contains fuel (things that could burn) and oxygen in the air, so you prevent fires by never letting it get hot enough – not starting a fire. Meanwhile if your house does catch fire and nobody does anything, it’ll burn until there’s nothing left that can burn – at the end there’s heat and oxygen, but no fuel.

What can happen when a fire gets developed in a house is that it can burn until there’s barely any oxygen left in a room. There’s heat and fuel, but without that last ingredient the fire grinds to a halt.

Now you open a door to that room (or a window breaks) and a whole rush of oxygen-rich air goes flooding in. All those hot flammable items catch fire in an instant, creating a fireball that can blast out of the open door or window.

So, if you’re ever unlucky enough to find yourself in a fire, touch each door and door handle before you open it. If it’s hot, your salvation is not on the other side, so leave that door closed – and watch out for being above the window of a room that’s on fire. The heat’s going to shatter the glass at some point, and when it does you don’t want to be above it.

 

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