power harnesing

post from CR4 - Recent Forum Threads and Blog Entries on 10 November 2007 11:41:55 PM. © CR4 - Recent Forum Threads and Blog Entries

I would like some info on harnesing power. Asembaling a home generationg curcuit what componets are needed for routing the curent from the generater to the 120 VAC curcuit? haw dose thermoelectric generation work. Is it posable to transmit current back to a secondary source (ie) a batery system or t

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M&M’s

post from easternblot.net on 10 November 2007 11:24:00 PM. © easternblot.net

Through Facebook (of all places) I found this “Survival of the Fittest” story relating to M&M’s. Credited to this Tampa Bay best of Craigslist page, but I found other/older instances of it on the web as well.An excerpt:“I have found that, in general, the brown and red M&Ms are tougher, and the newer blue ones [...]

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Courses

post from CR4 - Recent Forum Threads and Blog Entries on 10 November 2007 11:09:26 PM. © CR4 - Recent Forum Threads and Blog Entries

what are some good audio technoligy courses, for acustics audio electronics and software?

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low cost medical oxygen generators for small
hospitals

post from CR4 - Recent Forum Threads and Blog Entries on 10 November 2007 10:18:15 PM. © CR4 - Recent Forum Threads and Blog Entries

i'm searching low cost medical oxygen generators for small hospitals, sufficient for simultaneous supply for 4 outlets

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What is Energy Really

post from CR4 - Recent Forum Threads and Blog Entries on 10 November 2007 07:38:18 PM. © CR4 - Recent Forum Threads and Blog Entries

What is Energy Really? Amazingly, after a science degree and a number of years involved in the sciences, I am embarrassed to ask this question. Oh, I have the ability to calculate the energy levels, the effects of energy transfer, conservation of energy, understand the interrelati

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Laser Measurement

post from CR4 - Recent Forum Threads and Blog Entries on 10 November 2007 07:38:12 PM. © CR4 - Recent Forum Threads and Blog Entries

I am tring to build a musical instrument with lasers. A laser harp. I only need the lasers themselves, 12 of them... that can measure distance from 0 through 30 inches. I plan on hooking them into an Arduino board... that will then run into a Mac. And using Cycling 74's softw

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Electrical HP required for hydraulic pump

post from CR4 - Recent Forum Threads and Blog Entries on 10 November 2007 07:04:34 PM. © CR4 - Recent Forum Threads and Blog Entries

I have a Barnes Cast Iron Hydraulic Pump 3.33 cu. in. , 51.8 gpm @ 3600 rpm. I need to know the electrical hp required to run this pump. I don't think the psi will go above 2500 psi for what i will be driving. The pump is rated at 3625 psi. I can use a 3ph electric motor to drive the pump. Any help

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Glass octopus!

post from Pharyngula on 10 November 2007 05:16:32 PM. © Pharyngula

Since everyone on the planet is sending me this, I'd better post it. Besides, it's pretty!

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Al Gore on American Sitcom '30 Rock'

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Scientists Chart Record Rise in Yellowstone
Caldera

post from Curious Cat Science and Engineering Blog on 10 November 2007 04:13:00 PM. © Curious Cat Science and Engineering Blog

Scientists chart record rise in Yellowstone caldera

The floor of Yellowstone National Park’s gigantic volcano has been rising at a record rate in recent years, probably due to an underground blob of molten rock more than 14 times the size of Billings, according to a new study. The Yellowstone caldera rose nearly 3 inches a year for the past three years, faster than anyone has ever recorded. “These are rates three times (greater) than previous historic rates,” said University of Utah seismologist Bob Smith, a lead author of the study to be published in the journal Science today.

But that rapid rising isn’t an indication of an imminent volcanic eruption or hydrothermal explosion at Yellowstone, he said. It appears in line with behavior at other volcanic craters that rise and fall for thousands of years without large-scale, catastrophic eruptions. “These things go up and down,” Smith said. “That’s very common for calderas globally.”

The researchers believe the 463-square-mile slab formed from molten rock in the magma chamber beneath Yellowstone, causing the surface of the caldera to rise.

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