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点击此处查看视频火箭从气球上发射能很轻松的突破高度记录，又不会特贵，给各位坛友提供个新的思路。以下视频包括 JParepspace company这是家致力于用气球发射各类航空器的私人公司，还有出现...

请确保你清楚此实验的危害与掌握相关高压、辐射处理技巧，在正确的防护下完成此实验，即便如此，此实验依然十分危险，请佩戴个人剂量检测装置与准备暴露紧急处理计划。一旦失误，这将是你的吐血大作！一只参数不详的...

对于X线摄影大多数都采用增感屏加相机，然而，X射线轰击在CCD上会产生很多噪点，如果用长焦，隔远点拍，又拍得不是很清楚。所以增加铅玻璃作为阻挡也是一种解决办法。但是铅玻璃很贵，又不给零切。所以就想了一...

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