Slashdot is powered by your submissions, so send in your scoop

 



Forgot your password?
typodupeerror

Comment Re:Symbiosis. (Score 1) 57 57

I wondered that myself. There would be great value if the bacteria could be engineered to maintain a limited population so the host would get a baseline supply of insulin. They would probably still require injections to keep well regulated, but it would be less and with reduced consequences if they were unable to do that for a time.

Perhaps it could even be enough to let a type I diabetic manage their blood sugar more like a type II sufferer.

Comment Re:Editors : WTF (Score 0) 209 209

Technically it's giving smaller amounts of something, not taking anything away. Nonetheless marginally it makes perfect sense to talk about "doling out cuts". It means starting with a total net cut and dividing the marginal impact among several parties.

Yes, it will raise a few eyebrows among editorial prigs, but it's perfectly clear what "doling out cuts" means.

Comment Re:Batteries in Cold Weather? (Score 1) 732 732

If you add up all the auxiliary stuff you need to power with electricity and round up generously, it's maybe 2000 watts load. The very best commercially available technology of today can run that load for 45 hours. So the impact of the auxiliary system load is marginal. That means it's only a concern if you're contemplating using close to the maximum range of your car. If you're traveling 15 miles each way in an 84 mile range Leaf, or 80 miles each way in a 250 mile range Tesla S, you don't really need to worry about running the heater and lights, even counting diminished battery capacity.

The average American spends 25 minutes each way commuting; even in NYC the average figure is 34.6. Even double or tripling that commute time due to bad weather and halfing the range due to cold, that's still easy for the Tesla. It's a bit of challenge for the Leaf with its 24 kwh battery and 84 mile range.

If the typical electric cars of ten years from now perform close to the high end of today, then the vast majority of people won't have to worry about cold weather's effect on range. But a sizable minority of Americans are what the US Census characterizes as "extreme commuters": people whose commute takes more than 90 minutes or fifty miles each way. Even at the low end of that spectrum cold weather range won't be an issue, but if you commute from Fargo to Bismarck ND every day it's safe to say you aren't going to be going electric any time soon.

Comment Re:Physics time! You misunderstand ion drives (Score 1) 500 500

The most popular theory is that it's transferring momentum via virtual particles. That has some startling implications, but it's less physics shaking than violating conservation of momentum. I'm not sure anyone has come up with any solid testable hypotheses yet, but it seems to be something that is likely to be testable in principle.

You'd have to work out the math, but I'd be cautious being too aggressive with relativistic reasoning. Conservation of energy and momentum in special relativity are a bit tricky to start with, and don't hold when you start jumping between reference frames.

Comment Re:No (Score 1) 307 307

Since we are discussing rules for the society where those links hold true, it hardly matters.

If/when society changes radically enough, we can revisit.

That will be quite a radical change though since as far back as written history goes, we find remarks about young adults being more rash and hot-headed than their elders and so in need of guidance.

Comment Re:No (Score 1) 307 307

See the references here.

If your claim was true, parents would instinctively tell their 5 year olds to go to bed when they feel like it and wouldn't worry about it if their 12 year old decided not to come home until morning.

Instead, they recognize that the 5 year old is developmentally advanced enough to avoid immediate threats but is nowhere near ready to plan their future.

Your knowledge is decades out of date.

Congratulations! You are the one-millionth user to log into our system. If there's anything special we can do for you, anything at all, don't hesitate to ask!

Working...