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"Radiation" doesn't necessarily mean electromagnetic radiation. After all, alpha- and beta-rays are also called radiation all the time.
by yongjik 12y ago
"Radiation" doesn't necessarily mean electromagnetic radiation. After all, alpha- and beta-rays are also called radiation all the time.
- jmount 12y agoRays usually means em-radiation. But cosmic rays are misnamed from (as they tend to be radiation, but not rays).