Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Strategies & Market Trends : Booms, Busts, and Recoveries -- Ignore unavailable to you. Want to Upgrade?

To: Slagle who wrote (68188)	8/28/2005 12:33:20 AM
From: Elroy Jetson	Respond to of 74559

My goodness - you now sound like an engineer from the Victorian Era. All that can be discovered, has been discovered. In spite of your great fear of entropy, a thermo-electric device with 20% efficiency will make profitable use of the heat you are currently content to spew into the atmosphere. Energy companies like Chevron can profitably harvest only high energy geothermal, such as those associate with hot springs and geysers. But neighborhoods and business can make widespread use of low temperature geothermal resources. It is easy for people to imagine using heat exchangers to heat and cool their homes and businesses. Trying to extract heat out of 40? or 20? air and exhausting heat into 80? or 100? degree air is very inefficient, even though Victorian Era engineers have seen to its widespread use. A well under 1,000 feet in depth, installed for less than $K, can dramatically improve the efficiency and sharply reduce the energy needs of buildings covering several square blocks. But this would require admitting the possibility of dramatic improvements in efficiency, which Victorian Era engineers claim is no longer possible. Its very difficult to create the future, while at the same time denying the possibility of its existence. At some point, the chains of the past have to be set aside to unleash to power required for growth. .

To: Slagle who wrote (68188)	8/28/2005 6:56:53 AM
From: shades	Read Replies (1) \| Respond to of 74559

Redneck friend in ga say they are using ash now instead of portland cement - how widespread is this trend? I dont share your negativity Slagle, there are still many mysteries of the universe to uncover - its all about scaling. science.slashdot.org Yet Another Method Of Achieving Nuclear Fusion Posted by Zonk on Sunday August 28, @03:35AM from the zap dept. deglr6328 writes "Recent research has seen the use of the pyroelectric effect, the compression of bubbles using ultrasound and gas jet irradiation for producing nuclear fusion on small tabletop-scales. Yet another method can now be added to the list which uses ultraintense laser irradiation striking a borated plastic target to heat a plasma to billion kelvin temperatures and achieves aneutronic (clean) proton-boron fusion. (The PRL paper can be read online.) Though, like the other recently discovered exotic methods of attaining fusion, it does not look like a method which can be scaled up to ignition or even anywhere near break even, it still may have important use in the laboratory for the examination of such incredibly high temperature plasmas."