Comment Re:Something which I do not understand (Score 1) 642
No, it means the earth is shrinking!
No, it means the earth is shrinking!
"Oh, looks like you have an outstanding warrant for that Blockbuster video you forgot to return 10 years ago."
It will merely be a customer of DigitalGlobe - one of many, including the US government.
Not that the US goverment needs DigitalGlobe's images. After all, the NSA has a fleet of its own satellites with far better image resolution capability than the DigitalGlobe effort.
In fact, the US Government relies heavily on DigitalGlobe imagery. After the optical component of the Future Imagery Architecture (FIA) program that should have replaced the aging KH-11 Keyhole/CRYSTAL satelites was scrapped, it left the NRO (the NSA has nothing to do with optical reconaissance) with limited high-res imaging capabilities. For a while they had only 3 operational KH-11 optical reconnaissance satellites left in orbit: two new recent launches have expanded this to 5 recently but one of these is over 17 years old and will likely soon be deorbitted, bringing it down to 4: hardly a "fleet". Lawmakers have been holding off NRO requests for more optical satellites with the argument that it is better to buy time on DigitalGlobe satellites.
You think the average Kansan really cares about this?
L'Anse aux Meadows.
Just a single example of European knowledge in the Americas that predated Columbus.
Irrelevant. The pictures in the Voynich manuscript are clearly not 11th century Norse but depict 16th century west European clothing and equipment and classic constellations.
Everything points to it being post-Columbian.
What was the point of examining this individual animal?
It was part of research into climate change over the past 1000 years. The oxygen isotopes in carbonates in clam shells provide information about climate at the time the shell layer was formed. See: http://www.bangor.ac.uk/news/full.php.en?nid=16781&tnid=0
It's worth keeping in mind, though, that you don't publish CalTech papers and get time on the Palomar 200" by being a dim-witted slacker.
True. I think their presentation of things is more the result of current publishing demands: useful or even innovative is not good enough anymore to get your paper through, it needs to be "new" and "never done before" instead of an innovation on an existing technique.
Still, I find the complete lack of any reference to even the words "track & stack" weird, given that tracking & stacking is common practise in imaging faint asteroids. Maybe not when you use a 5-meter telescope, but with with smaller instruments it is often done. I have used the technique myself o faint asteroids and much-used astrometry packages like Astrometrica have a standard option for it.
The general consensus is that Homo sapiens neanderthalis did not use throwing spears and it was the Homo sapiens sapiens who did this innovation.
There is no such consensus at all.
For the bow and arrow: yes. For throwing spears: no.
The 350 000 yrs old Schöningen (Germany) wooden spears, which predate Homo sapiens, are finally balanced with the center of balance at 1/3rd of their length. They have the balance and shape of an Olympic throwing javelin. Experiments with replica's show they are indeed quite suited as throwing spears.
The weak point of this new study is that it actually does not differentiate impact marks from thrusting from impact marks from throwing. It merely assumes that traces of a stone tip equate a throwing spear. And in placing the earliest evidence in an early H. sapiens context in S-Africa, it overlooks evidence elsewhere in a non-sapiens context.
Neandertals in Eurasia for example did haft stone points to pieces of wood: we know this because stone points with remnants of birch tar have been found (e.g. at Campanello, Italy). There is also the find of a wild ass vertebra from Um el Tlel in Syria with a Levallois stone point deeply embedded in it. In addition: a throwing spear does not have to be stone-tipped.
E. coli that invariably comes from an animal source, like a leaky nearby cistern?
The first time, it's a KLUDGE! The second, a trick. Later, it's a well-established technique! -- Mike Broido, Intermetrics