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Walking on Caltech's campus, engineer Chris Roh happened to see a bee stuck in the water of Millikan Pond. Although it was a common sight, it led Roh and his colleague Mory Gharib to a discovery about...
A team of scientists supported by the National Science Foundation (NSF) will launch a series of research flights over the remote Southern Ocean this month to better understand just how much ...
How a flying bat sees space(图)     flying bat  sees space       2015/11/12
Recordings from echolocating bat brains have for the first time given researchers a view into how mammals understand 3-D space.By training bats to fly around obstacles in a room, and sit patiently on ...
Boltzmann and the art of flying.
This paper describes the photogrammetric approach to find the geometric shape of a paraglider. As its geometry is only available during the flight this had to be done under special conditions. The lay...
Optical diodes controlling the flow of light are of principal significance for optical information processing 1. They transmit light from an input to an output, but not in reverse direction. This brea...
Abstract: Random flights in $\mathbb{R}^d,d\geq 2,$ with Dirichlet-distributed displacements and uniformly distributed orientation are analyzed. The explicit characteristic functions of the position $...
Galaxy clusters are spectacular. We provide a Google Earth compatible imagery for the deep co-added images from the Sloan Digital Sky Survey and make it a tool for examing galaxy clusters. More detail...
It is reported the design, construction and initial tests of a three cell flying capacitor inverter (TCFCI) in a half-bridge configuration. The device operates at a 200 kHz frequency which leads to a ...
期刊信息 篇名 Self-adaptive optical systems for long-distance flying optics 语种 英文 撰写或编译 撰写 作者 Zhaogu Cheng,Zhiping Zhang,and Jianqiang Zhu 第一作者单位 Shanghai Institute of Optics and Fine Mechanics, Chinese 刊物名...
November 3, 2006,Those who cannot afford the million-dollar price tag attached to space tourism will be happy to learn that at least their names--and their logos--will be able to travel into space for...

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