How the Circumference of Earth Was Accurately Estimated 2000 Years Ago

Born around 276 B.C. in Cyrene, Libya, Eratosthenes soon became one of the most famous mathematicians of his time. He is best known for making the first recorded measurement of the Earth’s circumference, which was also remarkably accurate. (And, yes, people at that point had known for some time that the world wasn’t flat, contrary to popular belief .) Read more…        

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How the Circumference of Earth Was Accurately Estimated 2000 Years Ago

Ford Rolls the Dice With Breakthrough F-150 Aluminum Pickup Truck

Hugh Pickens DOT Com writes “USA Today reports that Ford’s next F-150 pickup truck will be made mostly of aluminum, instead of steel, in a bid to save weight. It will likely either be hailed as a breakthrough product to buyers who’ve made F-150 the bedrock of its business or one that draws comparisons to a ‘rolling beer can.’ The automaker has asked Alcoa, which makes aluminum blast shields for battlefield-bound vehicles, to lend some of its military-grade metal for the automaker’s display, according to people familiar with Ford’s plans. Ford’s sales job will be considerable: The company is eager to demonstrate the toughness of aluminum, which is lighter than steel, to pickup buyers at next month’s Detroit auto show. ‘This is already the most significant debut at the auto show, ‘ says Joe Langley. ‘Everybody’s going to be dissecting that thing for a long time, especially since Ford will be taking such a big gamble.’ As a transformative product with a potentially troublesome introduction, the new F-150 has drawn comparisons with Boeing Co.’s 787 Dreamliner — an aircraft developed under the company’s commercial airplane chief at the time, Alan Mulally, who in 2006 became Ford’s chief executive officer. Because of the complicated switch to aluminum from steel in the F-150’s body, IHS Automotive estimates Ford will need to take about six weeks of downtime at each of its two U.S. truck plants to retool and swap out robots and machinery. Ford is apparently trying to squeeze more than 700 pounds out of its next generation of pickup trucks. Using aluminum to cut weight would help meet rising fuel economy standards in the United States, which is requiring a fleetwide average of 54.5 miles per gallon by 2025.” Read more of this story at Slashdot.

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Ford Rolls the Dice With Breakthrough F-150 Aluminum Pickup Truck

This Wacky Forward Wing Jet Flew Faster Than the Speed of Sound

The 1980s ushered in more than a few aeronautical revolutions thanks to the emergence of both composite manufacturing techniques and rapidly advancing digital technology. This uniquely designed experimental aircraft integrated all of them into a single system. Read more…        

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This Wacky Forward Wing Jet Flew Faster Than the Speed of Sound

The Math Behind the NSA’s Email Hacks

We’re all outraged by the NSA’s invasions of privacy, sure—but we don’t perhaps understand exactly how it managed it. This video explains the maths behind the agency’s surveillance. Read more…        

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The Math Behind the NSA’s Email Hacks

A US Army Base Is Running a Bunch of Illegal Windows 7 Copies

Given the United States’ intolerance for copyright infringement and the piraters that propagate it , you’d think Uncle Sam would be a little more keen on making sure that his men were playing by the book themselves. As it turns out, a whole mess of computers running unlicensed, illegal copies of Windows 7 belong to none other than the US Army itself . Read more…        

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A US Army Base Is Running a Bunch of Illegal Windows 7 Copies

When Did There Become Too Many Books to Read in One Lifetime?

We’ve all done it: stood in a library, looking around, we’ve been confronted by the fact that there are way, way too many books in existence for us to ever read. But when in history did that happen? Read more…        

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When Did There Become Too Many Books to Read in One Lifetime?

A Fully Loaded New Mac Pro Will Cost You $14,000

After no short period of waiting, the new Mac Pro has finally gone on sale today . All along it’s promised to pack punch, and it might just prove to be your ultimate work station . But absolute power will cost you. Read more…        

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A Fully Loaded New Mac Pro Will Cost You $14,000

Robot-denying telemarketing robot may not actually be a robot

Remember that super-realistic telemarketing chatbot who denies she’s a robot ? Turns out “Samantha West” may not a robot after all — but the real story is just as bizarre. Read more…        

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Robot-denying telemarketing robot may not actually be a robot

NuScale Power Awarded $226 Million To Deploy Small Nuclear Reactor Design

New submitter ghack writes “NuScale power, a small nuclear power company in Corvallis Oregon, has won a Department of Energy grant of up to $226 million dollars to enable deployment of their small modular reactor. The units would be factory built in the United States, and their small size enables a number of potential niche applications. NuScale argues that their design includes a number of unique passive safety features: ‘NuScale’s 45-megawatt reactor, which can be grouped with others to form a utility-scale plant, would sit in a 5 million-gallon pool of water underground. That means it needs no pumps to inject water to cool it in an emergency – an issue … highlighted by Japan’s crippled Fukushima plant.’ This was the second of two DOE small modular reactor grants; the first was awarded to Babcock and Wilcox, a stalwart in the nuclear industry.” Read more of this story at Slashdot.

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NuScale Power Awarded $226 Million To Deploy Small Nuclear Reactor Design

The NSA Can Decode Private, Encrypted Cellphone Conversations

The Washington Post is reporting that, according to a newly released internal document, the National Security Agency isn’t just swiping location data from our cell phones ; they actually have the ability to decode private, encrypted data, putting all our texts and calls right at their disposal. Read more…        

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The NSA Can Decode Private, Encrypted Cellphone Conversations