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20 小时
on MSN
Twisting light: Novel metasurface offers compact solution for circularly polarized light
Left and right circularly polarized light, where the electromagnetic waves spiral in a clockwise and counterclockwise manner ...
3 小时
on MSN
“Mirror life” poses extreme existential risk to the world, scientists warn
If everything that occurs at the microscopic, molecular level in plants and animals and other life forms occurs as a result ...
Science Daily
14 小时
Chemists unlock the potential of ketone and ester molecules, paving the way for greener and ...
Scientists have long considered ketones (a fundamental chemical class) and esters (molecules formed when an acid reacts with an alcohol) to be locked treasure chests of possibilities. Ubiquitous as ...
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今日热点
Los Angeles wildfire updates
California fires: How to help
To go dark on Sunday
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Court declares DACA illegal
Ex-CIA analyst pleads guilty
Fed exits climate group
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US drops corruption case
Opposes Fani Willis' bid
Senate confirmation hearing
Vanguard fined by SEC
Sasaki signs with Dodgers
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CA battery storage plant fire
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To negotiate drug prices
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Sudan army chief sanctioned
Texas abortion pill ruling
Calls for stronger sanctions
Acting legend Plowright dies
Pence advocates for Taiwan
Khan gets 14-year jail term
Liable for defaming veteran
New Pompeii excavation
Denied bail in assault case
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