Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
×

Comment Medieval surgical implements? (Score 1) 615

Having trouble tracking them down again but I've seen photos of a medical device that was essentially a concave hemispherical head on the end of a small pump, that was used to correct vision for a few hours at a time by suctioning the eyeball into shape. I'm pretty certain they're no longer in use.

Comment Re:Rear touch pad (Score 1) 244

The point of a rear touchpad (and this has been talked about hypothetically for PDAs/smartphones for ages without any actual results AFAIK) is that you have all the benefits of a touchscreen without obscuring your vision of the thing you're touching. It's less of an issue with resistive screens because a stylus is pretty skinny but anyone who's played a game (or typed for that matter) with thumbs on a capacitive screen has experienced the frustration of mistakes made because they can't see what they're doing.

I don't own an i/Android phone yet although I'm sure I will eventually, but my hands are freaking huge and the few times I've had to send sms from a friend's phone have proven frustrating at best. It appears I'm not the only one. A rear touchpad means a clear view of the screen at all times, which will make it a hell of a lot easier to see what you're doing, and to do it accurately.

Comment Re:Microsoft? Not SBRI? (Score 1) 176

Exactly. Normal coffee is meant to be consumed at 60C/140F, and no hotter than 70C/160F, and is generally served around 10-15C hotter and allowed to cool.

At 200F, you're looking at instantaneous 2nd/3rd degree burns. Knock 20-25F off that serving temperature and cooling factors such as airborne dispersal and time taken to soak through clothes give you at least a fighting chance of coming out of it without needing skin grafts.

Comment Re:Isn't this the same as a trolley? (Score 1) 419

This paradoxically works out in favor of the trolley lines, given that they tend to attract economic development to them.

Perhaps I'm looking at it wrong but I look at it as saying the use of trolleys attracts economic development like the parable of the broken window, by breaking a window glass you're creating work for the glass maker. However in reality breaking the glass only diverts money when it can be used for a better purpose. Instead of the kid getting the shoes he needs the money is now spent on glass.

It also sounds like the line that using tax money to pay for a new sports stadium brings in new revenue for the area. Not one economic study I've heard of concludes this is true. Some conclude any benefit is smaller than what was advertised. Others conclude there is no benefit at all.

Portland, OR claims that its streetcar line has spurred billions of dollars of investment in the area surrounding it in a very short period of time.

They may claim it but do the numbers support that? Or is it a broken window parable?

Falcon

Oh, mind you I'm not arguing against improving mass transit, I support doing it, but I'd like to see the numbers crunched. It's easy to be over optimistic when you're not spending your own money.

Earth

Ultracapacitor Bus Recharges At Each Stop 419

TechReviewAl writes "A US company and its Chinese partner are piloting a bus powered by ultracapacitors in Washington DC. Ultracapacitors lack the capacity of regular batteries but are considerably cheaper and can be recharge completely in under a minute. Sinautec Automobile Technologies, based in Arlington, VA, and its Chinese partner, Shanghai Aowei Technology Development Company, have spent the past three years demonstrating the approach with 17 municipal buses on the outskirts of Shanghai. The executive director of Sinautec touts the energy efficiency of this approach: 'Even if you use the dirtiest coal plant on the planet [to charge an ultracapacitor], it generates a third of the carbon dioxide of diesel.'"

Slashdot Top Deals

Neutrinos have bad breadth.

Working...