By Alessandra CalderinPosted 07.19.2010 at 10:11 am 16 Comments
Of all the bodies in our solar system, the sun is probably the one we want to give the widest berth. It gushes radiation, and even though its surface is the coolest part of the star, it burns at about 9,940°F, hot enough to incinerate just about any material. As such, there are no plans to send a manned mission in its direction anytime soon (Mars is much more interesting, anyway), but it can't hurt to figure out at what distance a person would want to turn back. You can get surprisingly close.
If there's a kryptonite for acne, it's heat. So scientists at Tyrell, Inc., invented the Zeno, a handheld rechargeable device that gives your pimples heat stroke. Hold the tip of the cellphone-size device to your zit for two and a half minutes, and a 16-bit microprocessor emits mea-sured pulses of 119�F heat. (It feels sort of like a hot compress.) Under your skin, bacteria produce stress proteins and self-destruct, halting the inflammation that creates visible blemishes and healing the area faster than other over-the-counter remedies&8212;typically within 24 hours.