Physicists construct the most accurate clock the world has ever seen

DNP clocks clocks all the time clocks

Calling a clock the most accurate ever may sound like hyperbole, but physicists at the National Institute of Standards and Technology in Boulder, Colorado have built a pair of devices that can claim that title. The team used an optical lattice to address an issue that plagues atomic clockmakers: constantly shifting frequencies that negatively impact the accuracy of their measurements. For example, a single second can be defined by the frequency of light emitted by an atom when electrons jump from one state to the next, but those frequencies change as the atom moves. The optical lattice essentially suspends atoms to minimize the Doppler effect produced by that movement. By combining the lattice with the element ytterbium, the group was able to create a device that measures time with a precision of one part in 1018. To put that into perspective, Andrew Ludlow, one of the paper's authors, said, "A measurement at the 1018 fractional level is equivalent to specifying the age of the known universe to a precision of less than one second." To read more about the team's work, you can find the full PDF at the source.

Filed under: Science, Alt

Comments

Via: MIT Technology Review, Gizmodo

Source: Cornell University Library (PDF)

]]>

View the original article here

» Read More...

This is the Modem World: Digital junk food

Each week Joshua Fruhlinger contributes This is the Modem World, a column dedicated to exploring the culture of consumer technology.

DNP This is the Modem World TKTKTK

I'm hanging out in Atlanta right now, getting ready to speak at Digital Summit 2013 about things you're probably not terribly interested in. Most importantly, I'm sitting at a bar and just ordered what looks to be a monster of a burger called the "Hot Mess" at a place called Park Bar near my hotel. Despite my disdain for online review sites, it was either this via Yelp or the hotel bar and, well, I find hotel bars depressing.

It's also pretty clear that the only reason I ordered the Hot Mess is because my wife isn't here to give me a hard time about it. No, I'm not a kept man, but I respect her knowledge of health and try to let her guide me most of the time. But when I'm on the road, I sometimes let all bets fall to the floor so that daddy can dig into a burger uninterrupted.

Filed under: Misc

Comments

]]>

View the original article here

» Read More...

HP ElitePad 900 review: HP's first Windows 8 tablet for the business world

HP ElitePad 900 review: HP's first Windows 8 tablet for the business world

HP's business PCs have always been surprisingly pretty. Not that good looks are high on our list of criteria, mind you, but at the very least they make a strong impression. Now that companies have gotten more comfortable with tablets (and Windows 8 in particular) HP is selling the ElitePad 900, its first Win 8 tablet built for the enterprise. Like all those EliteBook laptops that came before it, it has a metal chassis that's not only sleek, but meets the military's MIL-Spec standards too. Otherwise, it has everything you'd expect from a business tablet: support for pen input, mobile broadband and security features like TPM. It's also being sold alongside various accessories, including some cases that add further functionality besides just protection from scratches. With a starting price of $699 for the 32GB model, though, it's a little more expensive than its competitors. Does that mean it's a little bit better too?

Gallery: HP ElitePad 900 review

Filed under: Tablets, HP

Comments

]]>

View the original article here

» Read More...

Why does the new world order allow illegal immigrants into the U.S.?

If the new world orders ultimate agenda is to kill 80-90% of the worlds population, doesnt this make it harder for them? What I mean is new world order architects are all just...

View the original article here

» Read More...

OUYA shows up at the FCC, has its guts splayed for the world to see

Image

It was only a matter of time, we suppose, before OUYA found itself on Uncle Sam's table, and the day has finally come, as the open source console has made its way through the FCC. As we've steadily uncovered all of OUYA's secrets since its inception, there's not much new revealed by the government's testing. That said, the flayed OUYA appears to be a founding backer edition, with the names of the chosen 11 inscribed on one side, but it's exchanged the opaque power button on top for a clear unit -- indicating that perhaps retail OUYA's will make it easier for owners to tell when the thing's on. Want to see the full monty for yourself? Theres's plenty of pictures of the OUYA's insides at the source link below.

Filed under: Gaming

Comments

Source: FCC

]]>

View the original article here

» Read More...

World Bank describes trouble and bubbles in Asia - Trouble beyond?

First, the primary focus of the headline and story just out. (or to put it another way, the breaking headline that started my hunt) The global lender, in its latest East Asia...

View the original article here

» Read More...

It's World Backup Day: no time like the present to protect the past

It's World Backup Day no time like the present to protect the past

There are two kinds of computer owners: those that backup their data, and those who will backup after they lose something irreplaceable. It's that last group for whom World Backup Day exists, and the special occasion has returned for a third year to make sure we all wind up in that first, very responsible camp. Thankfully, it's easier than ever to have at least some kind of safety net. Along with ridiculously high-capacity external hard drives, both Mac and Windows users have simple built-in software to make backup a set-it-and-forget-it affair. No money or room for an extra drive on the desk? No problem: cloud storage is ubiquitous, and even includes unlimited options. Mobile users have it a little easier with a myriad of Apple, Google and Microsoft cloud services, although there's third-party options in that space, too. In short, you've got few excuses to skimp out when it comes to safeguards, and enough choices to seriously consider using two or more -- which might be wise in this dangerous era of meteorite showers and brick-tossing robots.

Filed under: Storage, Internet

Comments

Source: World Backup Day

]]>

View the original article here

» Read More...

Total Tayangan Halaman

Blog's Archives