Ancient effect harnessed to produce electricity from waste heat

A phenomenon first observed by an ancient Greek philosopher 2,300 years ago has become the basis for a new device designed to harvest the enormous amounts of energy wasted as heat each year to produce electricity. The first-of-its-kind ...

Wireless 'tooth tattoo' detects harmful bacteria

Using silk strands pulled from cocoons and gold wires thinner than a spider's web, researchers at Princeton University have created a removable tattoo that adheres to dental enamel and could eventually monitor a patient's ...

T-ray madness: Scientists score wireless data record

(Phys.org) -- Wednesday headlines trumpeted how "Japanese researchers smash Wi-Fi records" and "Scientists show off the future of Wi-Fi." The excitement is for good reason. A team of scientists have broken the record for ...

Qualcomm's HaloIPT tech brings wireless charging for EVs

(PhysOrg.com) -- Qualcomm has demonstrated its new wireless power transmission system for electric vehicles (EVs) at the Consumer Electronics Show (CES). The system, including one pad for power transmitting, another for power-receiving, ...

Bouncing signals off ceiling can rev up data centers

(PhysOrg.com) -- Researchers have a startlingly upbeat idea for data center managers coping with packed rooms, Internet traffic bursts, and high costs looming in having to reconfigure data center designs. The researchers ...

Broadcom will ship 802.11ac products in 2012

(PhysOrg.com) -- Broadcom is highlighting a second coming of Wi-Fi in the name of the new IEEE standard 802.11ac, with this week’s announcement that its products based on the nascent standard will be ready for shipping ...

WalkSafe app shields smartphone pedestrians (w/ video)

(PhysOrg.com) -- Smartphone users who as pedestrians are not very smart about crossing and looking both ways now have a protective shield in the form of an Android app which they can download for free. A research team from ...

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