Coolest University Tech Lab Projects in the Works
NW writes "While universities like MIT, Berkeley and CMU don't tend to shout as loudly about their latest tech innovations as do Google, Cisco and other big vendors, their results are no less impressive in what they could mean for faster, more secure and more useful networks, computers, etc. Here's a good roundup of 25 of them, from studies on putting T-Rays to use in computers to advancing wireless to the next level to outsmarting terrorists on the Web."
2-3 cm seems to be rather large, especially since it has to go through the skull - can anyone comment on this ?
Why do people always spout this crap? The most efficient speed will ALWAYS be the bottom speed of your top gear. In 90% of cars today this is, and likely always will be, 45-50 mph. Of course, this assumes you drive at a constant speed. Hypermilers will tell you that you should accelerate at 75% throttle (for most cars), in the manual recommended gear (automatics may require slightly less power or special tricks for correct upshifting) until you reach about 55mph. Then put in the clutch (or transmission into neutral) and coast until the bottom of your top gear. Then accelerate at 75% throttle to 55mph. Then coast again. Repeat. This the most effecient. Wind resistance prevents the most efficient speed from going higher than around 55mph, no matter what you do about gears.