benjamin júnior

Researchers use wireless network to monitor breathing, could save lives

When Neal Patwari and his team of researchers developed a wireless network capable of seeing through walls, we assumed they were simply looking to cultivate their Alastor Moody-like superpowers. Turns out, they had far more important things on their minds. Patwari and his colleagues at the University of Utah have now penned a new study in which they demonstrate how their motion detecting technology could be used to monitor breathing patterns, as well, potentially enabling doctors to keep closer track of patients with sleep apnea or babies susceptible to sudden infant death syndrome (SIDS). To do this, Patwari reclined on a hospital bed and surrounded himself with 20 wireless transceivers operating at a frequency of 2.4GHz, as pictured above. He then timed his breathing at about 15 breaths per minute (the average rate for a resting adult), which he measured with his array of nodes and a carbon dioxide monitor. The engineer ultimately found that his sys

Scientists attempt to give spark of life to all-synthetic metal cells

Just because it hasn’t happened yet, doesn’t mean it can’t; at least that’s what a Scottish research group is hoping as it attempts to create reproductive synthetic cells made completely from metal. At this stage, the idea of sentient metallic life remains a distant sci-fi dream, but researchers at the University of Glasgow have already birthed iChells — inorganic chemical cells. These bubbles, formed from the likes of tungsten, oxygen and phosphorus, can already self-assemble, possess an internal structure, and are capable of the molecular in-and-outs expected of its biological counterparts. Researchers are still tackling how to give these little wonders the ability to self-replicate, and possibly evolve — further cementing our doom post-Robot Apocalypse. Check out our future synthetic overlord’s first steps in a video after the break.

Sept. 19, 1982: Can’t You Take a Joke? :-)

1982: At precisely 11:44 a.m., Scott Fahlman posts the following electronic message to a computer-science department bulletin board at Carnegie Mellon University:

AmazonLocal Brings Daily Deals To A Kindle Near You

It may have started with a quiet rollout, but a recent announcement shows that it’s AmazonLocal‘s time to get loud. According to Amazon, their Groupon-esque deals service will start displaying bargains on their Special Offer-oriented Kindles when a new software update goes live in coming weeks.

Corrector ortográfico de português para mac, integrado com o sistema. Free.

A Machine That Gives Shape to Your Ideas. - Graphic - NYTimes.com

The MakerBot 3-D printer offers the possibility of manufacturing products in the home almost as easily as printing a document with an inkjet printer. The company’s Thing-O-Matic machine moves in three dimensions to spray layers of colored plastic to form objects, some quite intricate. Do-it-yourselfers are already selling 3-D printed products like custom dollhouse furniture at art fairs and museum shops and on Web sites like Etsy.com. The price is $1,300 for a kit you put together yourself; a fully assembled machine costs $2,500. While this machine uses plastic, other 3-D printers can create objects made of metals and other materials. (The New York Times Company is an investor in True Ventures, one of a number of venture capital firms that has invested in MakerBot Industries.)

The Best TED Talks

It's time to stop using downloads as the key metric for apps success

The mobile apps industry is suffering from download-milestone overkill. Developers and publishers boast about how many times their apps have been downloaded on the various app stores, while analysts and the store owners themselves use downloads as a key metric to gauge the success of those stores. While these figures aren’t meaningless, they’re only a guide to potential success.

Fim da incerteza na Apple

A renúncia de Steve Jobs ao cargo de executivo-chefe da Apple pegou muitos de surpresa. Porém, a decisão era esperada. A saída marca o fim de uma era, mas também de um período de incerteza. Todos tinham noção de que Jobs sairia do cargo, mas não sabiam quando.

19 Vintage Advertisements That Wouldn’t Make Today’s Cut

Conheça a história de Abdulfattah John Jandali, pai biológico de Steve Jobs

Existe uma linha tênue entre o que pode ser considerado uma pauta editorial e um assunto privado, que diz respeito somente a certas pessoas. No caso específico desta matéria, apesar de trazer informações bastante privadas, acredito que não se trata de um desrespeito para com as pessoas envolvidas. E é exatamente por pensarmos desta forma que trazemos a história a seguir.