By timothy from Slashdot's if-the-artifact-is-a-crime-why-not-the-system? department
First time accepted submitter Austrian Anarchy writes with this story via Reason (and based on areport at Wired
) about a maker of physical Bitcoin tokens. Quoting from Reason's take: "Mike Caldwell ran a business called Casascius that printed physical tokens with a bitcoin digital key on it, key hidden behind a tamper proof strip. He'd charge $50 worth of bitcoin to print a bitcoin key you sent him via computer on this token. Cool stuff--a good friend of mine found one sitting unnoticed in her tip jar from an event at which she sold her artisan lamps from 2011 and was naturally delighted given the nearly 1000x increase in value of a bitcoin since then. So, you're making something fun, useful, interesting, harmless--naturally the federal government is very concerned and wants to hobble you. 'Just before Thanksgiving, [Caldwell] received a letter from the Financial Crimes Enforcement Network, or FINCEN, the arm of the Treasury Department that dictates how the nation’s anti-money-laundering and financial crime regulations are interpreted. According to FINCEN,
Caldwell needs to rethink his business. "They considered my activity to be money transmitting," Caldwell says. And if you want to transmit money, you must first jump through a lot of state and federal regulatory hoops Caldwell hasn't jumped through.'"Read Replies (0)
By timothy from Slashdot's wish-it-was-a-perfect-unblemished-cylinder department
Nerval's Lobster writes "From the annals of Really Important Science comes word that a research assistant who picked up his B.S. just seven months ago has invented a coffee mug designed to keep java at just the right piping-hot temperature for hours. Logan Maxwell, who got his undergraduate degree in chemical engineering from North Carolina State University in May, created the "Temperfect" mug as part of his senior design project for the College of Engineering. Most insulated mugs have two walls separated by a soft vacuum that insulates the temperature of a liquid inside from the temperature of the air outside. Maxwell's design has a third layer of insulation in a third wall wrapped around the inner basin of the mug. Inside is a chemical insulator that is solid at room temperature but melts into a liquid at 140 degrees Fahrenheit. The insulator – which Maxwell won't identify but swears is non-toxic – turns to liquid as it absorbs the extra heat of coffee poured into the mug at temperatures higher than 140 F, cooling it to a drinkable temperature quickly. As the heat of the coffee escapes, the insulating material releases heat through the inner wall of the mug to keep it hot as long as possible; a graph mapping the performance of a prototype shows it could keep a cup of coffee at between 128 F and 145 F for as long as 90 minutes. "Phase-change" coffee-mug insulation was patented during the 1960s, but has never been marketed because they are difficult and expensive to manufacture compared to simpler forms of insulation. While working on the Temperfect design, Maxwell met Belgian-born industrial designer Dean Verhoeven, president of consulting form Ancona Research, Inc., who had been working on a similar design and had already worked out how to manufacture a three-walled insulated mug cost effectively. The two co-founded a company called Joevo to manufacture the mugs."
According to the Joevo Kickstarter page
, you can get one starting at $40. For that much, I'd like a clever lid like this Contigo has
.Read Replies (0)
By timothy from Slashdot's if-you-transmit-it-they-will-come department
alphadogg writes "The ITU has taken a big step in the standardization of G.fast, a broadband technology capable of achieving download speeds of up to 1Gbps over copper telephone wire. The death of copper and the ascent of fiber has long been discussed. However, the cost of rolling out fiber is still too high for many operators that instead want to upgrade their existing copper networks. So there is still a need for technologies that can complement fiber, including VDSL2 and G.fast. Higher speeds are needed for applications such as 4K streaming, IPTV, cloud-based storage, and communication via HD video, ITU said."
Meanwhile, I'm hoping Google Fiber, FIOS, and other fast optical options scare more ISPs into action along both price and speed axes.Read Replies (0)
By timothy from Slashdot's do-dilute-it-with-water department
Hugh Pickens DOT Com writes "Suzanne Goldenberg writes at The Guardian that researchers at the University of Toronto's department of chemistry have identified a newly discovered greenhouse gas, perfluorotributylamine (PFTBA), in use by the electrical industry since the mid-20th century, that is 7,000 times more powerful than carbon dioxide at warming the Earth. 'We claim that PFTBA has the highest radiative efficiency of any molecule detected in the atmosphere to date,' says Angela Hong. Concentrations of PFTBA in the atmosphere are low – 0.18 parts per trillion in the Toronto area – compared to 400 parts per million for carbon dioxide but PFTBA is long-lived. There are no known processes that would destroy or remove PFTBA in the lower atmosphere so it has a very long lifetime, possibly hundreds of years, and is destroyed in the upper atmosphere. 'It is so much less than carbon dioxide, but the important thing is on a per molecule basis, it is very very effective in interacting with heat from the Earth.' PFTBA has been in use since the mid-20th century for various applications in electrical equipment, such as transistors and capacitors. 'PFTBA is just one example of an industrial chemical that is produced but there are no policies that control its production, use or emission,' says Hong. 'It is not being regulated by any type of climate policy.'"Read Replies (0)