 |
This nano-scale survey satellite is planned to be launched in 2012. Its only purpose is to find stars outside the solar system that may resemble the Earth and may support the survival of living organisms.
According to the British Daily Mail, the world’s first bread-size satellite will be used to investigate the mysterious life of exoplanets.
This nano-scale survey satellite is planned to be launched in 2012. Its only purpose is to find stars outside the solar system that may resemble the Earth and may support the survival of living organisms. Dresdner's director of space systems, Seamus Thursi, successfully developed the ExoPlanetSat satellite with the help of MIT researchers and called it an innovative space mission.
Simmus said: “Although a large number of satellites are currently deployed in space orbits, they are usually used for simple communications or space observation missions. Our first project for an exoplanet satellite survey satellite has no similar satellites. Survey plan."
It is reported that the exoplanets survey satellite is only a slice of bread, 10 centimeters wide and 30 centimeters long. The satellite can measure the brightness changes of the stars by surveying the satellites passing through the front of the star. After calculating the dimness of a star, scientists can Calculate the size of the transit planet.
By calculating the transit time of the transiting stars around the stars, one can calculate how far the planet is from the star. Measuring the change in the brightness of a star means that the detector must be stable, and any interference will cause the image to be blurred and unusable. The special technology used by this satellite can ensure that the effects of interference are minimized.
Experts said that the microsatellite was designed to work with large satellites, such as the Kepler detector that NASA launched two years ago.
This nano-satellite is powered by solar panels and can survey about 150,000 stars. It is considered to be of great future research value.
The cost of each exoplanet survey satellite is about 379,000 pounds, and its use period is only 1-2 years. Scientists hope to launch a nano-satellite fleet for hundreds of stars in the future to determine whether there are terrestrial planets inside their planetary systems.
Vitrified Grinding Wheels mean grinding wheels in ceramic bonded. Vitrified grinding wheels can be superabrasive grinding wheels like diamond grinding wheel or CBN Grinding Wheels. It also can be abrasive grinding wheels such as white aluminum oxide grinding wheel,pink grinding wheel,silicon carbide grinding.
Vitrified grinding wheel is only one type of bond, which is ceramic, it can be in any type of abrasive.
The main ingredient of vitrified bond are vitreous material with low melting point, such as borosilicate glass, lead glass, etc.It is widely used in various grinding methods such as outer circle, inner circle, flat surface, centerless, etc. It is the most commonly used bonding agent for abrasive tools.
Vitrified bond is characterized by high chemical stability, almost can work in a variety of cooling media, small elastic deformation, brittle, can be made into a variety of hardness levels of grinding tools to adapt to the processing of various hardness of the workpiece. Vitrified bond has good self-sharpening.
The grinding efficiency of single crystal diamond with vitrified bond grinding wheel is higher than metal bond grinding wheel. The wear ratio is very small and the processing cost is low. Therefore, the grinding efficiency of single crystal diamond with ceramic bond grinding wheel can be greatly improved.
Vitrified Grinding Wheels,Vitrified Wheels,Vitrified Diamond Wheel,Vitrified Bond Grinding Wheel
Henan Kemei Abrasives Co.,LTD , https://www.kmgrindingwheels.com