There are two distinct types of cosmic rays - low energy ones that are sourced from the sun, and the high energy ones that are sourced from the big guys on the universal block. So yes, there are different sources for both high and low energy cosmic rays. However, for the sake of this conversation all cosmic rays are considered high energy when compared to the measly energies our colliders can produce:)
The matter goes nowhere. It is completely and utterly annihilated. Some radiation escapes from the event horizon of a black hole due to Hawking radiation, but it contains none of the information encoded in the original consumed matter or energy.
Heh - when you're talking about a black hole at or smaller than the size of an atomic nucleus it doesn't matter whether it's at the top of the atmosphere or at the center of the Earth. Matter at that scale is described as tenuous at best. You'd have to get somewhere like the center of the sun or denser before a collision would be anywhere near likely.
The Sun in conjunction with the Earth's atmosphere has been colliding particles with WAY higher energies that the LHC could ever manage for billions of years now. As far as I know we've not been consumed by a mini black hole yet.
Ryan N. Kamfolt - ClickAway writes: "Apple may begin implementing software in its I-Tunes suite to track serial numbers of I-Pods and compare them to a stolen I-Pod database. Due to the worlds most successful and popular product being on the #1 most stolen items list. This may alert the local police to come knocking on your door, if "Your" I-Pod is in question. Weather it be stolen or legit, people are not taking this to heart kindly at all. With the right to privacy walls closing in on us ever so fast, this seems to be another push to take our privacy rights away even more, or is it? Those who have had their I-Pods stolen love the idea. Others are not so happy about the idea. Some privacy right advocates have suggested implementing I-Pods or I-Phones with owner ID verification, such as a password or other forms of verification that must be entered into the devices before they will take a charge or allow you to place songs on the device. Or offer a service that is apart of Apple iCare, which allows users who feel they may become a victim of theft, to join this database, to further protect them in the even their I-Pod is stolen."
linear a writes: I've noticed that quite a few web sites do *not* encrypt user passwords. I've gotten into the habit of hitting the "email me my password" from them to see what happens. So far I've found maybe 6 that must store passwords in clear since they were able to return the original password back to me. Clearly this is Bad Security Practice. Also, I've had notably bad progress when I ask them to fix this practice. Some of these are sites one would clearly expect to have better security (e.g., a software vendor and an online bank).
Do you have thoughts on how to better encourage better password practice at these places? Also, is this is really as common as it seems to be for me?
coondoggie writes: "If you signed up for the federal or your state's Do Not Call Registry a few years ago, you might want to thing about refreshing it. Pennsylvanians this week got a wake up call, so to speak from the state's Attorney General Tom Corbett who kicked off a public awareness campaign designed to remind people what many have forgotten or never knew — that the 2002 law set registrations to expire after five years. That is of course unless you want to start hearing from those telemarketers as you sit down to dinner. Corbett said about 2 million people signed up in the immediate aftermath of the law taking effect and those who do not act by Sept. 15 will have their numbers dropped from the registry on Nov. 1. The Pennsylvania action is a reminder that the National Do Not Call Registry has a five year life span as well. The Federal Trade Commission is set to being a nation campaign in Spring 2008 to remind all US citizens to refresh their federal Do Not Call Registry standing.
StaffInfection writes: "On Earth, the Phoenix lander (http://phoenix.lpl.arizona.edu/mission.php) is a table for four — about the size of a modest dinner table. On Mars it will soft land a suite of science instruments for studying the Martian Polar regolith. Phoenix is the rekindling of the Mars Surveyor Lander, twin to the ill-fated Mars Polar Lander (MPL, http://solarsystem.nasa.gov/missions/profile.cfm?M Code=MPL). After a one day delay in fueling of the Delta II-7925 (http://www.boeing.com/defense-space/space/delta/d elta2/delta2.htm) launch vehicle due to weather, Phoenix is prepared for launch on Saturday, July 4th, at 5:26 a.m. or 6:02 a.m EDT. The science payload will analyze the martian polar soil for water and mineral content and study the surrounding morphology and atmospheric conditions. Landing (animations at http://phoenix.lpl.arizona.edu/newsArchive.php?p=4 &y=2007) will be a Viking style soft landing rather than the air bag system used on the Mars Pathfinder and Rover missions. All missions to Mars are challenging but Phoenix represents a last chance to rectify for the loss of MPL and Mars Climate Orbiter in 1999. A successful landing will present our first visit to the Martian Polar environment."
isntwargreat writes: "Seems like Americans love to talk about making change in America, but there are some things (such of as the constitution, or the structure of the government) that are never touched on.... How would you change America if you could change just about anything? What are the obstacles that would prevent current American society from making these changes? Can democratic movements (such as the mass organization of people via the Internet) bring about these sorts of changes? If so, How??? And most importantly, since this is Slashdot, how does technology fit into all of it?"
El_Oscuro writes: "For those of you who buy stuff on eBay, there is a new kind of scam
A seller sells lots of cheap stuff (in this case, camera memory cards) to build up a a 99.9% positive rating, then starts selling expensive items (like $700 cameras). That is when the scam starts. Once they have acquired a positive rating and the trust of buyers, they start gyping people on the expensive items.
On amazon and other sites that have reviews, somethimes the auther of a book will give his book a glowing review.
If you are buying something expensive on eBay, make sure you read the seller reviews for similar items.
Unfortunately, TFA makes you create an account with washingtonpost.com to read it.