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Submission + - California startup announces 400 Wh/Kg Li-ion cells (gigaom.com)

dch24 writes: Envia announced their 400 Wh/Kg battery, 2.66x better than standard Li-ion batteries (150 Wh/Kg). With no other improvements that's an EV that can go 300 miles per charge.

They have GM and DOE funding, and are predicting a commercial product in 3 years.

Space

Submission + - Bussard Fusion Validated at EMC2fusion.org (blogspot.com)

dch24 writes: Ever since Robert W. Bussard did his Google Tech Talk: Should Google Go Nuclear?, the question of whether Polywell Fusion generation will make net power has hung in the air. Today, EMC2fusion.org updated their web site with results from the efforts of a world-class team of physicists to verify Bussard's papers.

Bussard's experiments were WB-6; he lost the battle against cancer in 2007. EMC2fusion then built WB-7 and validated Bussard's experiments (with technical data given to the government sponsors but not to the public). Now the EMC2fusion site has pictures of WB-8 and plans for WB-D. The results are still unpublished, but this acknowledges that WB-7 was a success, and that EMC2fusion is moving forward with plans for a net power machine.

Slashdot Posting Bug Infuriates Haggard Admins 262

Last night we crossed over 16,777,216 comments in the database. The wise amongst you might note that this number is 2^24, or in MySQLese an unsigned mediumint. Unfortunately, like 5 years ago we changed our primary keys in the comment table to unsigned int (32 bits, or 4.1 billion) but neglected to change the index that handles parents. We're awesome! Fixing is a simple ALTER TABLE statement... but on a table that is 16 million rows long, our system will take 3+ hours to do it, during which time there can be no posting. So today, we're disabling threading and will enable it again later tonight. Sorry for the inconvenience. We shall flog ourselves appropriately. Update: 11/10 12:52 GMT by J : It's fixed.

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