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自己动手。。。

kamanwu(开开)

Learn how you can easily build your own eclipse projector.

(#16029941@0)
Last Updated: 3-31
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工作学习 / 科技自然 / 观察日食的眼镜，什么地方买？ -scar(Scar); 3-31 {38} (#16029104@0)
我看amazon 上的都是非polarized的国产的

看日食的眼镜不是偏振镜〈polarized），而是从紫外到红外全光谱减光程度符合要求的 -naidanac(劳者); 3-31 (#16029201@0)
搞不懂有啥好看的？多伤眼睛啊 -geekcode(文心雕码); 3-31 (#16029506@0) +1
记得上次在公司门口看，有人拿纸盒子扎个小孔看投影，就是小点，但效果还行 -haihai(享受阳光🌞); 3-31 (#16029575@0)
Amazon -anexplorer(页于); 3-31 (#16029810@0)
自己动手。。。 -kamanwu(开开); 3-31 {499} (#16029941@0) +2

Learn how you can easily build your own eclipse projector.

Full Story:
https://www.asc-csa.gc.ca/eng/youth-educators/activities/fun-experiments/eclipse-projector.asp
Last time I got it from a local department store. -sailor(Ocean & Mountain); 3-31 (#16030302@0)
amazon, "solar eclipse glasses", 今天下单明天就到 -narra(万儿八千); 4-4 (#16036958@0) +1
日蚀将近，有很多不法商贩贩卖假冒伪劣的所谓“日蚀眼镜”，提醒大家小心。。（简单的测试方法。。戴上合格的日蚀眼镜，除了太阳在反光物体上的反光，你不应该看到其他任何东西） -lepapillon(Le Papillon); 4-4 {723} (#16036988@0) +1
With two weeks until April 8's total solar eclipse, the American Astronomical Society is warning buyers about unsafe and counterfeit solar glasses.
Full Story:
https://www.space.com/aas-warns-of-fake-solar-glasses-total-eclipse-2024