关于流星的15个小秘密_BEC初级作文

关于流星的15个小秘密

流星体中含有太阳系中已知的最古老的岩石，以及在太阳系诞生的几十亿年前在其他恒星周围形成的矿物。

7.Each day, up to 4 billion meteoroids fall to Earth.

每天落到地球上的流星体约有40亿个。

8.Don't worry. Most of them are minuscule in size.

但是不用担心，它们中的绝大多数体积都非常小。

9.Meteorite impacts have been blamed for hundreds of injuries, but only one has been verified by scientists. In 1954, Annie Hodges of Sylacauga, Alabama, was struck by an eight-pound meteorite that crashed though her roof and bounced off a radio into her hip while she was napping.

许多人都声称曾被落下来的陨石砸伤，但真正被科学家证实的陨石伤人事件只有一起。1954年，美国亚拉巴马州的Annie Hodges被一颗8磅重（约3.6千克）的陨石砸中：这颗陨石击穿了她的屋顶，砸中了一台收音机，并反弹起来击中了正在打盹的Annie的屁股。

10.A study published in 1985 in the journal Nature calculated the rate of impacts to humans as .0055 per year, or one event every 180 years.

1985年发表在《自然》杂志上的一份研究称，陨石伤人的比例约为每年0.0055人，或者说每180年1人。

11.If you find a meteorite, the Nomenclature Committee of the Meteoritical Society demands that you donate 20 percent or 20 grams, whichever is smaller, to a laboratory for future research. You can sell the rest.