Comment Re:So what? (Score 1) 94
Correlation is not causation. Are the kids who are allowed to spend more than 2 hours a day on screens getting the same quality of parental care as others? Could *that* be affecting their development?
Correlation is not causation. Are the kids who are allowed to spend more than 2 hours a day on screens getting the same quality of parental care as others? Could *that* be affecting their development?
Video codecs are not the only example of this, there are many.
I'd be interested in finding out how they selected songs. Previous decades' music seems to get better over time as the bad stuff gets forgotten and only the best gets replayed. That process hasn't had time to happen yet for the 2010's hence the poll results.
Did the researchers control for this by picking randomly from the full range of songs released in previous decades, or only from those still readily available or in circulation (ie. the good stuff)?
$1 million for both eyes *in America*. In other places it'll be expensive, but somewhat more reasonable.
The same thing we do every night, Pinky. Try to take over the world!
How about a mnemonic that helps you to remember the *relevant* words:
stay away from People
stay away from Aircraft/ports
be Responsible
Observe your drone at all times
stay Lower than 120m
Enjoy yourself
PAROLE
A study of zircons from a gigantic meteorite impact in South Africa, now online in the journal Geology, casts doubt on the methods used to date lunar impacts. The critical problem, says lead author Aaron Cavosie, a visiting professor of geoscience and member of the NASA Astrobiology Institute at the University of Wisconsin-Madison, is the fact that lunar zircons are âoeex situ," meaning removed from the rock in which they formed, which deprives geoscientists of corroborating evidence of impact. "While zircon is one of the best isotopic clocks for dating many geological processes," Cavosie says, "our results show that it is very challenging to use ex situ zircon to date a large impact of known age."
The problem is that the removal of the zircon from lunar rocks changes the data enough to make the dating unreliable. The method might work on Earth, but the dating done on Apollo samples can be questioned. This means that much of the supposed history of the solar system, centered on what planetary scientists call the late heavy bombardment, a period 4 billion years ago when the planets were being hit by innumerable impacts as they cleared the solar system of its dusty debris disk, might not have happened as dated from lunar samples. If so, our understanding of when that bombardment ended and life began to form on Earth might be considerably incorrect.
The solution? Get to the planets in person, where you can obtain many samples in situ and thus gather a much deeper understanding of the geology.
Always draw your curves, then plot your reading.