SI
SI
discoversearch

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.
Politics : The Environmentalist Thread
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: HPilot who wrote (22589)8/1/2008 4:11:29 PM
From: Maurice Winn  Read Replies (1) of 36921
 
0.01 ppm for He3 is thin gruel. To get 10 gram of the stuff, we'd have to vacuum up and filter 1000 million grams of dust or 1000 tons.

Swarms of little photo-voltaic powered robot vacuum cleaners could roam the surface then head back to a collection point and rocket to launch the stuff to Earth.

There's always something new coming along. I hadn't heard of that. Thanks. Google and cyberspace are great.

Mqurice
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2026 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News