material-凯发k8官网

14-04-29 soft and cuddly（逗人喜爱的） aren't words used to describe the plastic or metal things typically produced by today's 3d printers. but a new type of printer developed by carnegie mellon university and disney research pittsburgh can turn wool and woo...

14-04-16 by depositing an array of tiny, metallic, u-shaped structures onto a dielectric（非传导性的） material, a team of researchers in china has created a new artificial surface that can bend and focus electromagnetic waves the same way an antenna does. t...

14-04-06 an international team of planetary scientists determined that the moon formed nearly 100 million years after the start of the solar system, according to a paper to be published april 3 in nature. this conclusion is based on measurements from the int...

14-04-06 all that's gold does not glitter, thanks to new work by uc irvine scientists that could reduce glare from solar panels and electronic displays and dull dangerous glints（闪烁） on military weapons. we found that a very simple process and a tiny bit...

14-03-13 repair robin becker more stall than store, his cramped（难懂的） space on carmine smelled of cat's paw leather cream polish. a belt, a boot, our shoes for soles: he restored them, mended your silver heron（苍鹭） lamp from norway, replaced your crac...

14-01-18 the capacitors（电容） of electronic circuits function something like batteries -- storing electrical charge that can be quickly dumped to power devices like camera flashes. so-called supercapacitors take the energy-storing abilities of capacitors a...

13-12-14 a duke research team has developed a better recipe for synthetic replacement cartilage（软骨） in joints. combining two innovative technologies they each helped develop, lead authors farshid guilak, a professor of orthopedic（整形外科的） surgery an...

13-12-09 to technology insiders, graphene is a certified big deal. the one-atom thick carbon-based material elicits rhapsodic（狂热的） descriptions as the strongest, thinnest material known. it also is light, flexible, and able to conduct electricity as wel...

13-11-13 reconstructing the rise of life during the period of earth's history when it first evolved is challenging. earth's oldest sedimentary rocks（沉积岩） are not only rare, but also almost always altered by hydrothermal（热源的） and tectonic activity....

13-10-14 polymers（聚合物，高分子） -- the essential component of plastics -- are found in countless commercial, medical, and industrial products. polymers that are porous（多孔的） are called foam polymers and are especially useful because they combine ligh...