The surprising history of hippy crack – Boing Boing

A surprisingly long article. Looks well researched! I’m looking forward to reading this!

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But people have been having fun with nitrous oxide – even in the name of science – virtually since its discovery more than 240 years ago. In fact, it’s only been the last 100 years or so that nitrous oxide has been more often used for “legit” purposes.

Nitrous oxide was first synthesized in 1772 by Joseph Priestly, one of Britain’s foremost chemists and the man who invented soda water; he allowed nitric oxide (NO) to stand in contact with iron filings and water, yielding the gas N20.

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The surprising history of hippy crack – Boing Boing.

What David Cameron just proposed would endanger every Briton and destroy the IT industry – Boing Boing

David Cameron says there should be no “means of communication” which “we cannot read” — and no doubt many in his party will agree with him, politically. But if they understood the technology, they would be shocked to their boots…

Article by Cory Doctorow

 

What David Cameron just proposed would endanger every Briton and destroy the IT industry – Boing Boing.

2 Futures Can Explain Time’s Mysterious Past – Scientific American

Thousands of galaxies fill an image from the Hubble Space Telescope

In the evolution of cosmic structure, is entropy or gravity the more dominant force? The answer to this question has deep implications for the universe’s future, as well as its past.
Credit: NASA; ESA; G. Illingworth, D. Magee, and P. Oesch, University of California, Santa Cruz; R. Bouwens, Leiden University; and the HUDF09 Team

 

Physicists have a problem with time.

Whether through Newton’s gravitation, Maxwell’s electrodynamics, Einstein’s special and general relativity or quantum mechanics, all the equations that best describe our universe work perfectly if time flows forward or backward.

Of course the world we experience is entirely different. The universe is expanding, not contracting. Stars emit light rather than absorb it, and radioactive atoms decay rather than reassemble. Omelets don’t transform back to unbroken eggs and cigarettes never coalesce from smoke and ashes. We remember the past, not the future, and we grow old and decrepit, not young and rejuvenated. For us, time has a clear and irreversible direction. It flies forward like a missile, equations be damned.

 

2 Futures Can Explain Time’s Mysterious Past – Scientific American.