In today's XKCD What If?, Randall Monroe answers the question, "From what height would you need to drop a steak for it to be cooked when it hit the ground?" posed by Alex Lahey:
At supersonic and hypersonic speeds, a shockwave forms around the steak which helps protect it from the faster and faster winds. The exact characteristics of this shock front—and thus the mechanical stress on the steak—depend on how an uncooked 8 oz. filet tumbles at hypersonic speeds. I searched the literature, but was unable to find anything to help me estimate this.
For the sake of this simulation, I assume that at lower speeds some type of vortex shedding creates a flipping tumble, while at hypersonic speeds it’s squished into a semi-stable spheroid shape. However, this is little more than a wild guess. If anyone puts a steak in a hypersonic wind tunnel to get better data on this, please, send me the video.
If you drop the steak from 250 kilometers, things start to heat up. 250 kilometers puts us in the range of low earth orbit. However, the steak, since it’s dropped from a standstill, isn’t moving nearly as fast as an object re-entering from orbit.
As Oracle desperately tries to reanimate its wretched, failed attempt to destroy everything Sun Microsystems stood for and end computer science as we know it, there’s never been a better time to rock one of these “You Wouldn’t Reimplement an API” tees, which were an underground hit during the earlier trial.
That really craps me up. This guy is a real commodian! (Tronologic via /r/CatsMurderingToddlers)
Misha Petrick reimagined the Instagram app if it had come out 20 years earlier in Windows for desktop. Be sure to scan that .exe file for viruses!
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