Physicists patent method to change skin-color perception
How someone perceives color is determined by how the item they are looking at scatters and emits light. In August, three City College of New York physicists affiliated with the Institute for Ultrafast Spectroscopy ...
Gadget Watch: The desk that tells you to stand up
Sitting down all day is bad for you, or so doctors say. There's been a burst of interest in standing desks, but they're not that easy to use, and it's hard to motivate sitters to stand.
Researchers document caterpillars that mimic one another for survival
(PhysOrg.com) -- In the world of insects, high risk of attack has led to the development of camouflage as a means for survival, especially in the larval stage. One caterpillar may look like a stick, while another disguises ...
How can a colorblind animal change its colors to blend into the background?
How could a colorblind animal know how to change its skin color to blend into its surroundings? And what will the animal's predator "see," looking at its prey before and after it hides?
Building a better light bulb
Scientists study the movement of charge carriers to design an organic LED that is energy efficient and still casts a warm, natural glow.
Mathematically correcting over- and underexposure in photographs
Almost anyone with a camera or smartphone is sure to have noticed that taking pictures in bright conditions, such as a sunny day, can cause a loss of highlight details (or overexposure) in bright regions and a loss of shadow ...
Review: Kindle Fire sacrifices to get under $200
The Kindle was always an odd product name. Amazon used a verb to name a thing, raising the question: Kindle what? Now we have the answer: Kindle Fire.
Research firm: Amazon sells $199 tablet at a loss
(AP) -- Amazon.com Inc.'s Kindle Fire tablet, which started shipping this week, costs $201.70 to make, a research firm said Friday. That's $2.70 more than Amazon charges for it.
Practical tool can 'take pulse' of blue-green algae status in lakes
Scientists have designed a screening tool that provides a fast, easy and relatively inexpensive way to predict levels of a specific toxin in lakes that are prone to blue-green algal blooms.
Female butterflies learn when it comes to wings, flashier is better in a mate
(Phys.org) -- If female butterflies are programmed to identify males of their species by the patterns of spots on their wings, how can new wing patterns evolve in males?
Researchers take hibiscus efforts to commercialization
Commercialization of winter-hardy hibiscuses from the Texas AgriLife Research program at Vernon could become a reality within the next year, according to Dr. Dariusz Malinowski, Texas AgriLife Research plant physiologist ...
Camouflage of moths: Secrets to invisibility revealed
Moths are iconic examples of camouflage. Their wing coloration and patterns are shaped by natural selection to match the patterns of natural substrates, such as a tree bark or leaves, on which the moths rest. ...
Insects learn faster when they are rewarded with nectar
Butterflies learn faster when a flower is rewarding than when it is not, and females have the edge over males when it comes to speed of learning with rewards. These are the findings of a new study, by Dr. Ikuo Kandori and ...
How is a Kindle like a cuttlefish
(Phys.org)—Over millions of years, biological organisms – from the chameleon and cuttlefish to the octopus and squid – have developed color-changing abilities for adaptive concealment (e.g., camouflage) ...