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Comment: Re:black hole caused by a black hole (Score 4, Informative) 122

by mbone (#47471783) Attached to: Giant Crater Appears In Northern Siberia

It would be more likely to be the exit point of a miniature black hole. The entry point would likely be a very small hole.*

I call these exit wounds; the physics is that the exiting hypervelocity thing sets up a shock wave moving matter out of the way, and it's the shock wave excavates the material in the hole. (Even a black hole does this; a decent sized one (say 10^10 kg) is very small, so not much matter would be eaten during a transit of the Earth. It does, however, pull matter towards it and its wake sets up an explosive shock wave that fractures and evacuates material.)

* A black hole the mass of the Sun would have a radius of ~ 3 km, so one the mass of the Earth is a few mm, and a likely primordial black hole, with a mass of maybe 10^10 kg, would have a radius of 10^-17 m, or well below the size of an atomic nucleus. Such a small black hole would not "eat" much in its passage through the Earth, which might take 20 - 40 seconds or so, because not much would actually hit it. It's gravitational wake, however, would be another matter. Such a primordial black hole would leave a tiny entrance wound, but a large exit wound.

Comment: Re:Some thoughts (Score 4, Interesting) 122

by mbone (#47470175) Attached to: Giant Crater Appears In Northern Siberia

Patomskiy Crater is in solid rock, this new one is in soft sediment. Solid rock requires energy to fracture, and it is thus less likely to be removed from an excavation. By the way, these sorts of holes (assuming that they are explosive in origin) are similar to "bench-blasting" in explosives work; there is a huge literature on this.

Comment: Some thoughts (Score 4, Interesting) 122

by mbone (#47469915) Attached to: Giant Crater Appears In Northern Siberia

First, if this is 80 meters in diameter, or 40 meters in radius, and say at a minimum 40 meters deep, that’ s not quite 10^9 kg of soil moved up order 40 meters, requiring (very roughly) the equivalent of 60 tons of TNT, at a minimum, and thus an equivalent magnitude of ~ 3.2 (again, roughly). Such an explosion should be detectable on seismological networks, such as the ones looking for nuclear testing.

Second, there is another mystery crater in Siberia - the Patomskiy crater. This one is in rock, not sediment, is about 160 meters in diameter, and is maybe 300 years old, but I have to wonder if they have a similar cause.

Third, I am interested in quark nuggets and other types of condensed matter, such as Q-Balls, generically called Compact UltraDense Objects (CUDOs) by Jan Rafelski of U. Arizona. If these things exist in the appropriate masses, they could cause holes such as this and the Patomskiy crater. Even better, if this were to be caused by transiting CUDO, it would cause a "linear earthquake, which should be easily recognizable in the seismic record.

+ - Mars (One) Needs Payloads->

Submitted by mbone
mbone (558574) writes "Mars One has announced that their first, unmanned, lander, targeted for 2018, needs payloads. Along with their 4 experiments, and a University experiment, they have two payloads for hire :

Mars One offers two payload opportunities for paying mission contributors. Proposals can take the form of scientific experiments, technology demonstrations, marketing and publicity campaigns, or any other suggested payload. “Previously, the only payloads that have landed on Mars are those which NASA has selected,” said Bas Lansdorp, “We want to open up the opportunity to the entire world to participate in our mission to Mars by sending a certain payload to the surface of Mars.”

The formal Request for Proposals for all of this is out now as well."
Link to Original Source

Comment: Re:It's already going on... (Score 1) 353

by mbone (#47410521) Attached to: Here Comes the Panopticon: Insurance Companies

Actually, as someone who is a pretty conservative driver, I welcomed the option to let worse drivers subsidize my premiums in exchange for them tracking my driving for a while. I could care less that they know (for example) that I always signal turns and lane changes and don't aggressively accelerate or stop. I could also care less that people who can't demonstrate the same behavior are seen as a higher risk and charged a higher premium.

...except you, of course, since you're on my \. frinds list and all...

Well, if you ever get divorced, better make sure you have never driven anywhere your ex-wife's attorney could make hay knowing about.

Comment: Buy? (Score 2, Insightful) 150

by mbone (#47407471) Attached to: Coddled, Surveilled, and Monetized: How Modern Houses Can Watch You

I haven't bought any of this, don't know anyone (personally) who has bought any of this, and don't know why anyone would buy any of this.

I guess, however, some people may have more money than brains. I wish they would put it into Kickstarter, Indiegogo, Rockethub, instead of this crap.

Comment: Re:Ken Starr is a bad example. (Score 1) 150

by mbone (#47407461) Attached to: Coddled, Surveilled, and Monetized: How Modern Houses Can Watch You

Sure, he did all kinds of dirt-gathering in order to try and impeach Clinton, but no one took him seriously.

Susan McDougal called. She wants to have a word with you.

I predict that if some fine day a Federal prosecutor (independent or otherwise) decides for some bogus reason that they want to hassle you, you will take it very seriously indeed.

I agree Whitewater was, like Benghazi, a fake scandal, but fake scandals can hurt real people.

A continuing flow of paper is sufficient to continue the flow of paper. -- Dyer