They use these at the U.S. Space & Rocket Center too. They have this odd, spectral quality which is pretty obvious after you've seen one in action.

1.) Failsafes. Most people these days have a dive computer (if you don't, then you definitely need a watch to time the dive) which tracks depth, time under, time before you hit the limit, any decompression stops, and sometimes air. However, those do fail, so it's recommended to have a watch and a charted dive plan…

Right-click the ad, hit "Block this ad", and then adjust the slider until you can see the image.

This sets up a noisy voltage on the A0 pin, reads it back, XORs the least significant digits, "whitens" the resulting bitstream (e.g., 00 and 11 are dropped, 01 becomes 0 and 10 becomes 1) and then converts that into whatever the code is requesting (bits, bytes, integers, that sort of thing). It is random because the…

The Arduino can generate hardware "true" random numbers with certain libraries, no external hardware needed.

There is a University of Alabama at Birmingham (UAB) as well as a University of Alabama at Huntsville (UAH), but the *real* University of Alabama is in Tuscaloosa.

Question: Aren't ketones proteins?

WHO: This flu shit is pretty scary, if you're a baby, pregnant, or like 90 years old.

Weird scuba nerd time: You can use spit, but specialized defoggers do exist and, when used effectively, are about 40x better. Some are pretty much diluted dish soap.

"Heaven and earth will pass away, but my words will not pass away. But concerning that day and hour no one knows, not even the angels of heaven, nor the Son, but the Father only. For as in those days before the flood they were eating and drinking, marrying and giving in marriage, until the day when Noah entered the…

My dad told me once that one of his life support instructors said that you do not stop trying until you can honestly stand before God (Allah, Morgan Freeman, $deity) and say that you did all that you possibly could. That is to say, if there is any possible chance that you can save this person's life–especially if you…

No, LEDs can generate massive amounts of heat. Some need huge heatsinks to keep them from burning out.

Yeah, but you have to pay for it.

However, as this is an interaction between two drugs, rather than an entirely new drug, it may be in use sooner.

Disgusting!

There is a group "Anonymous".

Security through obscurity is no security at all.

DAMN.

Did it hit McFarland?

Actually, in the earlier versions of Windows (like 95), they would pop up for several types of errors, not just the "YOU DONE SCREWED YOURSELF NOW" errors they do today. I remember being a kid, having something crash into a blue screen, calling my mom, and having her just press "enter" or some other bullcrap to get…