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Science

New Findings On Whale Tongues May Lead To Insight On Human Nerve Damage 47

Posted by samzenpus
from the bend-me-shape-me dept.
An anonymous reader writes with this story about the discovery of stretchy nerves in whales. Researchers from the University of British Columbia have discovered that the largest animals alive – whales – have nerves in their tongues that can double in length and then recoil like a bungee cord. The researchers were studying specimens at a commercial whaling station in Iceland when they stumbled upon the discovery reported Monday in Current Biology. Researchers say it could have important implications for study into human nerve damage. "I had never seen a nerve like that," said Wayne Vogl, of UBC's Cellular and Physiological Sciences department.
Medicine

Feds Say It's Time To Cut Back On Fluoride In Drinking Water 314

Posted by timothy
from the my-amount-of-fluoride-right-or-wrong-but-my-amount-of-fluoride dept.
An anonymous reader writes: Federal health officials Monday changed the recommended amount of fluoride in drinking water for the first time since 1962, cutting by almost half the maximum amount of fluoride that should be added to drinking supplies. The Department of Health and Human Services recommended 0.7 milligrams of fluoride per liter of water instead of the long-standing range of 0.7 to 1.2 milligrams. The change is recommended because now Americans have access to more sources of fluoride, such as toothpaste and mouth rinses, than they did when fluoridation was first introduced in the United States,' Dr. Boris Lushniak, the deputy surgeon general, told reporters during a conference call.

Comment: Re:Slow (Score 3, Insightful) 106

by almitydave (#49394403) Attached to: World's First 1 Megawatt All-Electric Race Car

So? It's not an oval racer. It's built to a performance envelope defined by a specific event. The factors that are important here are acceleration, downforce, and mechanical grip; not top speed. Looking at the sketch in TFA, it's clear by the presence of the front wing that they're targeting massive downforce, which eats into top speed by creating drag.

Comment: Re:3 Minutes (Score 4, Insightful) 106

by almitydave (#49394207) Attached to: World's First 1 Megawatt All-Electric Race Car

with 1MW power, the 50KWh battery would be dead in 3 minutes at full throttle.. jeez.
Roughly equivalent to a gasoline car with a 2-gallon tank... lol. (1 gal=33KWh)

Do all these people posting 50kWh/1020kW 180s comments not understand racing? Or hybrid drive systems? Or Mountain roads? As TFA mentions, the Pikes Peak course contains over 150 turns, so you'll be off throttle or at partial throttle most of the time, especially with that much torque available, and regenerative braking will give some of it back.

Or perhaps the race car engineers that are building the race car don't know anything about the race they're building it for. That seems likely. /sarcasm

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