This makes them appear about equal in size - and the latest research indicates they're about equal in influence.
We now know, for example, that the Earth's crust experiences tides similar to that of oceans.
Meteorites are among the oldest objects we know about - formed about 4.5 billion years ago. This article describes the principles and methods used to make that determination.
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Thermal processes that may occur during meteorite impact in the lifetime of the specimen can reset some of the atomic clocks, mixing components and releasing important gases such as "You refer to extinct nuclides 14C, 26Al, and 129I.
Only the latter two "extinct" nuclides are used in dating.
"Near the end you imply that low petrologic type chondrites are the most easily dated.
Actually, meteorites that formed by melting, e.g., the various types of achondrites, usually give more precise ages.
It is widely accepted that a deer’s activities are tied in with lunar cycles. When talking about the moon and its effects, deer will feed at certain times, move around at other times, and use specific trails at distinct times.
If the phase of the moon is noted during these activities, the next time that phase occurs, you will be sure to see the deer in the same place or doing the same thing.
They will be the first to tell you that people commit more crimes and high numbers of babies are born when the moon is full.
Put the same question to deer hunters and they will say the same thing, only relate the moon phases to deer hunting.
That's right, the Earth's surface bulges in response to geomagnetic forces like the planet's vast seas.
Even more impressive is the manner in which primitive organisms like oysters can register and respond to invisible lunar messages.
After the second half-life has elapsed, yet another 50% of the remaining parent isotope will decay into daughter isotopes, and so on.