2005-08-16から1日間の記事一覧
The real bad guy is Galactic Cosmic Radiation (GCR) produced in distant supernova explosions. It consists, in part, of very heavy positive ions--such as iron nuclei--zipping along at great speed. The combination of high mass and high speed…
今日の質問の後日談。 息子:「Dad, what does DNA stand for?」 主人:「Ask Mummy. I told her the other day.」 猫:(こらこら私に振るな)「No, you tell him. You teach him English. I teach him Japanese.」 主人:「But I just told you the other …