Quantum entanglement, the spooky action at a distance that promises to be so useful for things like high-powered computing and security, is generally considered a function of the tiny world. It’s easy — OK, not easy, but relatively practical nowadays — to take two particles or two microscopic things and intertwine their fates. Now for the first time, scientists have accomplished quantum entanglement on the macro scale, entangling two millimeter-sized diamonds.
After ages of controlling the international market for natural diamonds, the diamond cartel De Beers is starting to spread its tentacles into Silicon Valley, where the hardest form of carbon is prized for much more than glitter. De Beers is investing heavily in convincing IT pros that lab-grown diamonds — not long ago, the bane of diamond dealers’ existence — are the semiconductor substrate of the future.
Girls might just have a new best friend. Diamonds are commonly known as one of the hardest (and shiniest) rocks on the planet, but new simulations show that three other stable forms of pure carbon would sparkle even more than diamonds. If we knew how to synthesize them, that is.
Diamonds are the hardest solid materials we know, and the ghostly space-age materials known as aerogels are the least dense. Looking for a challenge, scientists at Lawrence Livermore National Laboratory decided to combine these substances and turn out a spongy, translucent version of a girl’s best friend.
Powerful X-ray lasers may allow scientists to image tiny drug molecules or even precisely target cancer cells, but the lasers require extremely high-quality mirrors to function well. Now researchers have created a nearly-flawless diamond that can do the job, according to Discovery News.
Future humans won't have to wait to travel to Pandora for the chance to mine unobtanium, because Neptune and Uranus may have diamond icebergs floating atop liquid diamond seas closer to home. The surprise finding comes from the first detailed measurements of the melting point of diamond, Discovery News reports.
I can’t stand diamonds. No, really, they just tick me off, because nearly everything about them is a lie. Diamonds are neither rare nor intrinsically valuable nor uniquely romantic. Those are ideas invented by the diamond industry. And no, despite what the ads tell you, diamonds are not forever. They are flammable and will burn brightly with a little help from a torch. This makes perfect sense when you consider that they are made of pure carbon, which reacts with oxygen to form carbon dioxide (“reacts with oxygen” just being another way of saying “burns”).
Tequila may be just another drink to those out in the town, but to a team of scientists in Mexico their country's native alcohol turned out to be a gem; a diamond, to be precise. Javier Morales, Luis Apátiga and Victor Castaño at the National Autonomous University of Mexico made the alchemist-worthy discovery while experimenting turning various organic solutions, such as acetone and ethanol, into diamonds. The scientists noted that 80-proof tequila (40 percent alcohol) had the ideal proportion of ethanol to water to create diamond films.
It's not bling, but this nano-ring may be the key to a quantum computer
By Gregory Mone
Posted 03.17.2008 at 1:58 pm 0 Comments
Granted, it will be far too small for her to show off to her friends, but if your potential fiancée has a love of science, she just might accept this bauble over something flashier. Its the worlds smallest diamond ring, created by a group of Australian physicists. The ring measures just 5 microns wide and 300 nanometers thick. And no, its not really for advertising your engagement. The ring is actually part of a device used to produce and detect single photons.
After decades of experimentation, scientists can finally grow diamonds that outshine even the rarest De Beers rocks. Launch the slideshow
By Elizabeth Svoboda
Posted 05.30.2006 at 2:00 am 4 Comments
What: Perfect single-crystal diamonds of more than two carats
(the average engagement ring is less than a carat) churned out in a day. Scientists create the gemstones using a process called chemical vapor deposition (CVD), which grows diamond crystals one carbon atom at a time.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.