On the afternoon of August 19th, Beijing time, for SpaceX and Tesla Motors CEO Elon Musk, last week was a wonderful week. SpaceX’s Grasshopper Rocket System (officially named Falcon 9) was successfully tested in Texas, and the concept of super-circular traffic announced by Musk was widely acclaimed. Then the SpaceX “Long†spaceship manned spacecraft passed through NASA (NASA). ) Preliminary specification review. SpaceX took a solid two-step approach to manned space. Last Tuesday, SpaceX was highly successful with Grasshopper's reusable rocket system test. The next day, SpaceX released a video showing that after the rocket rose to an altitude of 800 feet (about 244 meters), it began to fly sideways, and finally landed on the original launch platform. The whole process is spectacular, especially considering that the rockets launched are as high as 10 floors. On Thursday morning, Musk announced the conceptual design of the "Super Loop" of the new transportation system. Although the design only stems from the disappointment of the California High Speed ​​Rail project, Musk believes this is an opportunity to explore the next generation of important transportation systems. Most people praise this design, although many people do not hope for it. In any case, Musk succeeded. Late Thursday, the preliminary design of the SpaceX "Dragon" spacecraft required components for manned space was approved by NASA. This is another solid step forward for SpaceX to manned space. Currently, SpaceX and NASA have signed contracts for 12 shipments of goods and have paid US$1.6 billion for them. At present, the company has completed two shipments. The approval of the preliminary design means that the company has taken a step closer to realizing manned space. SpaceX proved to be able to launch rockets at a net load of less than $500 per pound, but such rockets cannot be reused. Musk’s goal is to make each level of the rocket reusable, which means that the launch cost per pound of net load is less than $100 (this is still fairly conservative data). Assume that SpaceX will allow the rocket to return safely and return to achieve the goal of reusing each level. We may be able to complete the space travel at a relatively low cost and eventually start the solar system migration. SpaceX can only transport goods and people into space, and other work may require other companies to complete. Only time can prove everything, but in any case, this idea is very exciting.
There are many kinds of protective gloves. In addition to chemical resistance, there are also anti-cutting, electrical insulation, waterproof, cold resistance, thermal radiation protection, fire retardant and other functions. It should be noted that the general acid and alkali resistant gloves are not the same as the chemical resistant protective gloves. So when needed, you should choose protective gloves that prevent all kinds of chemicals from penetrating.
The correct use of
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Elon Musk is CEO of Tesla, an electric vehicle company, and CEO of Aerospace’s SpaceX
1. Check whether the gloves are damaged before each use
2. Wear protective gloves before handling harmful substances or operating dangerous procedures
3. Avoid exposure of pollutants and contact with the skin after removing the contaminated gloves
4. Contaminated gloves should be wrapped before being discarded
5. Reuse protective gloves should be thoroughly cleaned and air-dried after use
6. Choose gloves of the right size
Maintenance method
1. Put protective gloves in a dry, dark and constant temperature environment
2. When there are a large number of chemical substances remaining, use appropriate solvent to clean, but avoid using corrosive cleaning fluid
3. Dry the gloves thoroughly after washing. Do not use heat to dry the gloves unless instructed by the manufacturer, as it will age the gloves quickly
Proper use and maintenance can properly increase the service life of protective gloves.
