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High-profile entrepreneurs John Vechey and Ted Leonsis get real about what happens after your company is successful. The second half of the morning at Inc. 500|5000 conference, which featured hugely successful PopCap founder John Vechey and serial entrepreneur Ted Leonsis , took a different tone from the energetic coffee-fueled morning sessions

(PhysOrg.com) -- John J. Chapman, a physicist working for NASA has presented an idea for a new type of fusion thruster for possible use by space traveling vehicles at the IEEE Symposium going on in Chicago this week. In the presentation, as explained on IEEE Spectrum, Chapman suggests that boron be used as an “aneutronic” fuel source, stating that doing so makes the energetic particles easier to deal with than traditional materials.

It may seem slightly ridiculous to consider the prospects for a future solar-hydrogen economy at an institute for theoretical physics at the University of Waterloo in Canada. After all, Canada is the capital of unconventional oil , also known as oil sands, also known as tar sands, which supply more than a million barrels of oil per day to the U.S. And the primary use of today's existing hydrogen economy--a $200 billion a year proposition--is adding the energetic molecule to such unconventional oils to make them more palatable to the global energy infrastructure.