搜索 - 科创

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闪烁体发射的波长基本和gamma射线能量没有关系。gamma射线光子进入闪烁体后，被闪烁体散射吸收能量，激发闪烁体中的原子到激发态，然后放出光子。不同闪烁体材料产生一个光子所需要的gamma射线能量不...

又做了一个简单实验，借着写数分作业（同时和npy视频）的机会体验了一把自然光。早晨6:30左右抵达全家便利店（复旦邯郸校区南区门口的店，窗户朝东），此时太阳高度角很低且有较明显云层，使用Light M...

前言本文目的是改良及补充自第七骑士团的计算火箭的停烧高度，最快速度，最高点，和飞到最高点所需时间一帖的公式。本帖中给出的公式是对火箭在大气层内的飞行作出估计。进而可以对火箭的参数作出优化，以达...

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