On a hot summer day, white clothing feels cooler than other colors due to reflecting—not absorbing—sunlight. Other colors like blue or black, will undergo a heating effect as they absorb light. To circumvent this heating ...
Optics & Photonics
Aug 3, 2023
0
53
If someone has a "hard shell but a soft center," that's often regarded as an appealing character trait. But for Professor of Polymer Chemistry Markus Gallei and his doctoral student Lukas Siegwardt the appeal lies in creating ...
Polymers
Feb 22, 2023
0
99
Stretchy films and squishy gels help make wearable electronics, soft robotics and biocompatible tissues a reality. But too much force can cause these polymers to break apart without warning. To detect stress before it's too ...
Polymers
Feb 23, 2022
0
65
Chameleons can famously change their colors to camouflage themselves, communicate and regulate their temperature. Scientists have tried to replicate these color-changing properties for stealth technologies, anti-counterfeiting ...
Nanomaterials
Oct 21, 2020
0
78
Imagine if water vapor in your breath or surrounding your fingertips revealed invisible patterns on commercial products—smartphones, laptops, expensive liquor—that verified the products' authenticity and aided anticounterfeiting ...
Nanomaterials
Oct 1, 2019
0
99
A thin film that reflects light in intriguing ways could be used to make road signs that shine brightly and change color at night, according to a study that will be published on Aug. 9 in Science Advances.
Polymers
Aug 9, 2019
15
235
Working with researchers at Zhejiang University in China, Changxi Zheng, assistant professor of computer science at Columbia Engineering, has developed a technique that enables hydrographic printing, a widely used industrial ...
Engineering
May 22, 2015
1
68
(Phys.org) —A team of researchers working at the Indian Institute of Science in Bangalore has found that manganese-doped quantum dots that appear orange are actually a mixture of many dots of different colors. In their ...
In Harvard's Pierce Hall, the surface of a small germanium-coated gold sheet shines vividly in crimson. A centimeter to the right, where the same metallic coating is literally only about 20 atoms thicker, the surface is a ...
Nanophysics
Oct 14, 2012
1
0
(AP)—The earliest movies known to be shot in color have been revived by film archivists, who on Wednesday gave an audience at London's Science Museum a glimpse at cinema's first attempts to show us the world as we see it.
Other
Sep 12, 2012
1
0
