科学与环境

New device measures curved mirrors' absolute shape to within 2 nanometers without touching them

来源: Phys.org - latest science and technology news stories · 发布于

New device measures curved mirrors' absolute shape to within 2 nanometers without touching them
来源: Phys.org - latest science and technology news stories

Researchers at AIST have developed a device that measures the absolute surface profile of curved optical elements with high precision without touching them.

Researchers at AIST have developed a device that measures the absolute surface profile of curved optical elements with high precision without touching them.

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科学与环境

This new concrete is stronger and pulls CO2 from the air

Researchers have created a concrete mixture that is both stronger and capable of absorbing carbon dioxide. The best formula, combining zeolite with bamboo biochar, boosted compressive strength by 7.48% and tensile strength by 15% compared with conventional concrete. It also captu

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