New Device Hides, on Cue, from Infrared Cameras
Published: November 26, 2012.
Released by Harvard University
Cambridge, Mass. - November 26, 2012 - Now you see it, now you don't. A new device invented at the Harvard School of Engineering and Applied Sciences (SEAS) can absorb 99.75% of infrared light that shines on it. When activated, it appears black to infrared cameras. Composed of just a 180-nanometer-thick layer of vanadium dioxide (VO2) on top of a sheet of sapphire, the device reacts to temperature changes by reflecting dramatically more or less infrared light.
Full Story »
More news from Harvard University
Study Finds Unexpected Biases Against Teen Girls' Leadership
CAMBRIDGE, Mass.-- Making Caring Common (MCC), a project of the Harvard Graduate School of Education, today released new research that suggests that many teen boys and teen girls--and some of their parents--have biases against teen girls as leaders. These biases could be powerful barriers to leadership for a generation of teen girls with historically high levels of education who are key to closing our nation's gender gap in leadership. The report also suggests that much can be done to prevent and reduce gender
Surfing a Wake of Light
When a duck paddles across a pond or a supersonic plane flies through the sky, it leaves a wake in its path. Wakes occur whenever something is traveling through a medium faster than the waves it creates -- in the duck's case water waves, in the plane's case shock waves, otherwise known as sonic booms.
The Secrets of Secretion
Cambridge, Mass. - June 22, 2015 -- Anything you can do, nature can do better. Chemical delivery systems, self-healing cells, non-stick surfaces -- nature perfected those long ago. Now, researchers at Harvard have hacked nature's blueprints to create a new technology that could have broad-reaching impact on drug delivery systems and self-healing and anti-fouling materials.
It's a notion that might be pulled from the pages of science-fiction novel - electronic devices that can be injected directly into the brain, or other body parts, and treat everything from neurodegenerative disorders to paralysis. It sounds unlikely, until you visit Charles Lieber's lab.
Cooking Up Cognition
These days, cooking dinner requires no more thought than turning a knob on a stovetop, but for early humans the notion that - simply by applying heat or fire - foods could be transformed into something both tastier and easier to digest demanded huge cognitive insight - insights often believed to be limited to humans. New evidence, however, suggests that, when it comes to cooking, humans may need to make more room at the table.
Study: Valuable Massachusetts Ecosystems Shrinking, Doing More with Less
All land is not created equal. Some ecosystems do triple duty in the benefits they provide to society. Massachusetts forests, for example, filter public drinking water while also providing habitat for threatened species and storing carbon to combat climate change.
Improving Accuracy in Genome Editing
Imagine a day when scientists are able to alter the DNA of organisms in the lab in the search for answers to a host of questions. Or imagine a day when doctors treat genetic disorders by administering drugs designed to alter a patient's genome. It may sound like science fiction, but with the development of genome-editing proteins like Cas9 and CRISPR, it could one day become science fact.
A Focus on Flight
Navigating through a cluttered environment at high speed is among the greatest challenges in biology - and it's one virtually all birds achieve with ease. It's a feat David Williams hopes to understand.