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Looking at the picture here, I only see a small seam of the transition between the overpass concrete and asphault, no metal seam. Has this...
Hi Steve ;), you posted your name/number on the site a while back. I'll avoid reposting your # in case you want to remove it, but it's already...
Black carbon's effects on ice melt and it's contribution to global warming has long been known, but I don't recall seeing any specific studies on...
Definitely - when I first learned of the difference between STC and PTC ratings, it was enlightening, but not too much of a surprise. Yes, I...
Still a pretty big difference in internal resistance...
Only because roof top solar panels tend to be mounted close to the roof while ground mounted solar tends to be mounted at least a couple feet off...
If you're going to have them repair the holes, make sure they don't simply bondo to fill in the holes. It will work for a few years, but...
Actually, long range transmission is more efficiently done with DC. High-voltage direct current - Wikipedia, the free encyclopedia Yes, better...
No, it doesn't. The people who were standing on the brakes and unable to stop the vehicle had likely pumped the pedal (probably a common response...
Since it's a tax credit, how strictly it's enforced depends on if you get audited and how the auditor interprets the rule. In other words, you...
It should not have mattered how long he waited to hit the brakes - if the brakes had been hit firmly once the car would have eventually stopped...
Thanks - I'm install solar soon (hopefully), but my system won't be big enough to totally offset my electricity usage. Had AB 920 been signed...
Lots of news about the recent water vapor study which suggests that about 30% of the warming in the last 30 years was caused by an increase in...
I think your "payback" calcs are off by a factor of 10 or so for the CFLs and LEDs take even longer because they're so expensive, but otherwise...
I like. More pics please. :)
Really the biggest drawback of the IMA system is that the engine has to be turning if the transmission is engaged. That could be solved by...
Basic physics calculations show that without greenhouse gases, the average surface temperature of the earth would be quite cold, likely nearly...
That's how it works here in CA, though it isn't a tax. For example, I get about 340 kWh/month of ~13c / kWh electricity. After that, the price...
There's also been a lot more funding for it with the recent stimulus package. In a lot of cases, simple education could get significant savings...
Long term it should free up a lot of money that is currently sent over seas - hopefully that is used to fuel our economy. It's going to take a...
