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Caren B. Les News
Forest? Check. Trees? Check. Blade of grass? Check!
Dec 1, 2013 — From agriculture to ecology, it’s important to keep tabs on changes in a given ecosystem – although sometimes it can be difficult to see the forest and the trees all at once. But now, a new technique for panoramic, very high resolution time-lapse photography allows a field or forest to be observed over time. Time-lapse photography for plant studies previously was limited to a few plants at a time in a laboratory setting. The GigaPan system overcomes that, enabling zooming from la...
Spring-mounted lidar maps Leaning Tower of Pisa
Dec 1, 2013 — Italy’s Leaning Tower of Pisa is already in a pretty precarious position – hence the name – but imagine the tragedy if an earthquake or other disaster knocked it over. Preservationists would need precise information to restore it...
Cameras capture aurora’s altitude
Nov 1, 2013 — Humans have long looked at the aurora borealis as a phenomenon of beauty and mystery, but some also look to those northern lights as a source of scientific information. The aurora could give us important hints about how the Earth is connected to...
Lidar could help pilots avoid turbulence
Oct 1, 2013 — You’re cruising calmly in an airplane – admiring the view, relaxing with a book or catching up on sleep – when wham! The plane hits turbulence, and your relaxing ride is ruined. Clear-air turbulence, or CAT, is practically...
Decoration deciphered on Stradivari violin
Sep 1, 2013 — Historians, artists and music lovers have long debated the merits of a Stradivari violin: Are the materials or the methods responsible for the unsurpassed sound quality, or did the 17th-century master just have a sixth sense that told him how best...
Via optics, violin plate explored
Sep 1, 2013 — They only needed it for one day – but, of course, in the case of a rare and priceless artifact, even one day can be a lot to ask. After the top plate of a Stradivari violin was displayed at an exhibition in Cremona, Italy, in 2011, researchers...
Vision helps robots help you
Aug 1, 2013 — The robot extracts information from the videos on human motion and poses, and how these relate to objects and activities. Based on that information, it computes the probability for future human action in similar scenarios. Roomba may keep your...
Wave a hand, create a touch screen
Jul 1, 2013 — Smartphone apps can take care of everything but walking the dog (although there may be an app for that, too). It’s convenient, sure, but you have to dig your phone out of your pocket, and you’re stuck with the interface designed by an...
From bike reflector to virus detector
Jun 1, 2013 — You see them on spokes, sneakers, safety vests and signs, but now retroreflectors are taking on even more protective roles: detecting bioterrorism agents. “In the most likely kind of attack, large numbers of people would start getting sick...
Scanning the roads most traveled
Jun 1, 2013 — Germany’s network of highways and byways runs almost to the moon and back – at least in terms of distance covered – which can make keeping track of wear and tear a mighty task. But now a shoebox-sized laser device called the...
Football + camera = touchdown!
May 1, 2013 — Some football fans can never get close enough to the action – even if they happen to score front-row seats on the 50-yard line, they want to be right on the astroturf instead. For those fans, there’s BallCam. The prototype,...
For better solar cells, observe the snail
Apr 1, 2013 — What do snail teeth and solar cells have in common? A lot more than you might think, if University of California researchers have anything to say about it. The gumboot chiton uses its exceptionally hard teeth to gnaw on rock to consume algae;...
Getting inside a fly’s head
Mar 1, 2013 — You can’t literally be a proverbial fly on the wall to spy on confidential conversations, but you can at least get inside a fly’s head – thanks to an ultramicroscope from the Vienna University of Technology. The instrument can...
App offers guidance where GPS can’t
Dec 1, 2012 — When you’re wandering through a maze of airport hallways and afraid you’ll miss your flight, your GPS can’t help you. But NAVVIS, an indoor positioning system that operates through a cellphone app, could be just the ticket. The new...
878-MP nightscape image reveals light pollution
Nov 1, 2012 — Bright city lights help us get around more easily at night, but they also can affect nocturnal wildlife, the environment, sleep patterns and more. “I became interested in light pollution because we know so little about it,” said Helga...
New robot handles with care
Oct 1, 2012 — Don’t you just hate it when your personal robot makes a mess instead of an omelet, crushing the eggs when it tries to pick them up? Well, a new five-digit, human-size robotic hand prototype could put an end to all that. Thanks to optical and...
Fiber optic sensors set sail
Sep 1, 2012 — To win races through wind, waves and inclement weather, sailors need nerves of steel. But it turns out that their boats need “nerves of glass.” A new fiber optic sensor system for racing yachts could alert crew members when a craft...
Uncooled IR camera reveals mysteries of space
Jul 1, 2012 — Even three years after its liquid helium cooling supply was exhausted, the maverick Infrared Array Camera (IRAC) on NASA’s Spitzer Space Telescope continues to capture new and wondrous views of the universe. Launched in 2003, the Spitzer...
3-D printing helps restore imperial collections
Jun 1, 2012 — The Palace Museum in Beijing – finished in 1420 and home to China’s emperors until 1924 – is undergoing extensive renovation with funding from the Chinese government, and a UK research team is helping the museum with its archives....
Laser swarm could swat asteroids away
Jun 1, 2012 — It sounds like the climactic scene from a sci-fi thriller: A group of small satellite-operated lasers flying in formation redirects an asteroid headed for catastrophic collision with Earth. But this isn’t the movies; this is a technique that...
Alexander Graham Bell, we can hear you now
May 1, 2012 — Linguists, historians and even musicians could benefit from noninvasive optical scanning technology that enables us to hear voices and sounds that were recorded more than a century ago. Unlocking these sounds is part of a collaborative sound...
A brighter way to ring in the New Year
Mar 1, 2012 — On New Year’s Eve 2011, the people of Ashgabat, Turkmenistan, celebrated the launch of not just 2012 but a citywide laser installation. A laser projected “2011” on the capital city’s 175-m-high Anayasa tower and then...
Out of the blue, into the office
Mar 1, 2012 — Working outdoors in the sunshine with blue skies and fluffy white clouds overhead – it sounds a little like heaven, doesn’t it? Except when rain falls, snow blows or wind gusts, of course. Skylights can provide much the same effect...
Elusive rainbows caught on camera
Dec 1, 2011 — Diligent camera work and a new meteorological model have captured what may be the first images of ephemeral triple and quadruple rainbows. These natural optical events are difficult to observe, partly because they are dim and appear in the sunward...
LEDs coax plants to grow
Oct 1, 2011 — Does talking to plants really help them grow? That’s debatable. But most people would agree that plants need adequate light, water and minerals to reach their full potential. Sometimes natural light is not a practical solution – as with...
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April 2024
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