ydrogen has great potential as a clean fuel source for powering our cars andairplanes, but it also poses some big hurdles – namely production, distribution infrastructure and storage. Storing hydrogen in gas or liquid form onboard a vehicle raises difficulties in terms of volume and pressurization – a hydrogen gas tank for a car would need to be around four times larger than current petroleum tanks.
Friday, March 11, 2011
Stretchable electronics get the heart back on track
Stretchable electronics get the heart back on track
When a patient has an arrhythmia (an irregular heartbeat), cardiologists will often treat the disorder by inserting two tube-like catheters into the patient's heart. The first catheter is used for mapping out the heart tissue, identifying the location of cells that are causing the arrhythmia.
Warner Bros. becomes first studio to offer movie rentals through Facebook
Warner Bros. becomes first studio to offer movie rentals through Facebook
Warner Bros. is hoping to leverage the popularity of social networking juggernautFacebook by becoming the first Hollywood studio to offer movies directly through the site. Facebook users will be able to purchase and rent titles from the Warner Bros. catalog using Facebook Credits and play, pause and resume the movies through their Facebook account for up to 48 hours from the time of purchase.
Pathfinder subs would crawl along the ocean floor
Pathfinder subs would crawl along the ocean floor
The Transatlantic Seafloor Research Challenge is not a real competition, but that hasn't stopped British designer Philip Pauley from envisioning it, and the watercraft that would take part in it. If it were to exist, the challenge would require underwater vehicles to cross from the UK to the US using whatever route their team members thought was the quickest, but they would have to stay in physical contact with the sea floor for as much of the distance as possible.
Philips Cinema 21:9 Gold Series LED TV to appeal to a ‘wider’ audience
Philips Cinema 21:9 Gold Series LED TV to appeal to a ‘wider’ audience
Anyone who thought making the switch from their old 4:3 analogue TV to a 16:9 widescreen digital model would mean the end of unsightly black bars at the top and bottom of the picture will likely have discovered otherwise – particularly if they also picked up a Blu-ray player along with the new TV.
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