19 April 2021
In an effort to curb global warming, Purdue University engineers have created the whitest paint yet. Coating buildings with this paint may one day cool them off enough to reduce the need for air conditioning.
In October, the team created an ultra-white paint that pushed limits on how white paint can be. Now they’ve outdone that. The newer paint not only is whiter but also can keep surfaces cooler than the formulation that the researchers had previously demonstrated.
“If you were to use this paint to cover a roof area of about 1,000 square feet, we estimate that you could get a cooling power of 10 kilowatts. That’s more powerful than the central air conditioners used by most houses,” said Xiulin Ruan, a Purdue professor of mechanical engineering.
联手华为造新车，极狐开启 高阶自动驾驶元年 _车市动态_汽车_中金在线
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联手华为造新车，极狐开启 高阶自动驾驶元年 _ARCFOX αS_行业-网上车市
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联手华为造新车 极狐开启 高阶自动驾驶元年 |自动驾驶技术|智能驾驶|阿尔法
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16 April 2021
NASA’s Perseverance rover has now spent its first months on the surface of Mars. The testing and deployment phase is proceeding well, and after the first technology demonstration with the Ingenuity helicopter, the rover is commencing the continuous scientific measurements.
With the arrival of the humidity and pressure measurement instruments onboard Perseverance, the first meteorological network on another planet is being created.
The Perseverance rover landed successfully on Mars in February 2021 and will now explore an ancient river delta in the Jezero Crater for at least the next Martian year, which is approximately two Earth years. After the landing, the rover stretched its robotic arms and has already delivered a good number of high-quality photos, videos, and audio samples back to Earth.