BetterfapOrg TalkToYoUniverse Earth's True Shape Revealed for 1st Time After two years in orbit, the European Space Agency’s (ESA) Gravity field and steady-state Ocean Circulation Explorer (GOCE) is nearing the end of its planned life span in February, producing the most accurate map ever of the so-called geoid -- an Earth-encompassing spirit level and global reference surface. An unused supply of xeon fuel will allow the mission to be extended until at least the end of 2012. Markedly different from a simple sphere or ellipsoid, the geoid is the mathematically 'true' shape of Earth. It represents a motionless global ocean but takes into account the effects of the Earth’s rotation, weight difference resulting from the position of mountains and ocean trenches, and uneven mass distribution and density variations in the planet’s interior. The resulting small variations in the Earth’s gravitational field feature on the geoid as ‘bulbs’ and ‘dips’ in an idealized ‘ocean’ surface. The Daily Galaxy via ESA
Leisure and Business Travel Packing List - Travel Light with One Startpage.com - The world's most private search engine The Life and Times of a Writer Birthday problem In probability theory, the birthday problem or birthday paradox[1] concerns the probability that, in a set of n randomly chosen people, some pair of them will have the same birthday. By the pigeonhole principle, the probability reaches 100% when the number of people reaches 367 (since there are 366 possible birthdays, including February 29). However, 99.9% probability is reached with just 70 people, and 50% probability with 23 people. These conclusions include the assumption that each day of the year (except February 29) is equally probable for a birthday. The history of the problem is obscure, but W. W. The mathematics behind this problem led to a well-known cryptographic attack called the birthday attack, which uses this probabilistic model to reduce the complexity of cracking a hash function. A graph showing the computed probability of at least two people sharing a birthday amongst a certain number of people. Understanding the problem[edit] distinct possible combinations of pairing. and
WHAT TO DO IF A NUCLEAR DISASTER IS IMMINENT! This guide was purposely designed with the sober realization that the overwhelming majority of our fellow Americans would not be compelled to read such a guide until a nuclear crisis was imminent and, unfortunately, their preparation options and time to do so then would be very limited. www.ki4u.com and other survival suppliers will again be quickly sold-out, as all were after 9/11 and Fukushima. This guide then will be the best/only help that we can offer. If you are fortunate enough to be exploring your family preparation needs and options before such a future national crisis, there is much more that you can and should do now to insure that they are even better prepared. If stores are still at all stocked, and safe to go to, try to buy as many of the following items as possible... The half-dozen top listed and UNDERLINED food items below are primarily for use while in the shelter. Go Acquire It All Now QUICKLY! Some Final Thoughts... How People Act in Times of Trouble Financial Concerns
Yahoo fait désormais partie dâOath Internet Sacred Text Archive Home What would happen if I drilled a tunnel through the center of th" Want to really get away from it all? The farthest you can travel from home (and still remain on Earth) is about 7,900 miles (12,700 kilometers) straight down, but you'll have to journey the long way round to get there: 12,450 miles (20,036 kilometers) over land and sea. Why not take a shortcut, straight down? You can get there in about 42 minutes -- that's short enough for a long lunch, assuming you can avoid Mole Men, prehistoric reptiles and underworld denizens en route. Granted, most Americans would end up in the Indian Ocean, but Chileans could dine out on authentic Chinese, and Kiwis could tuck into Spanish tapas for tea [sources: NOVA; Shegelski]. Of course, you'd be in for a rough ride. For sake of argument (and survival) let's pretend the Earth is a cold, uniform, inert ball of rock. At the Earth's surface, gravity pulls on us at 32 feet (9.8 meters) per second squared. You're still moving at a heck of a clip, though, so don't expect to stop there.
Photojojo Wikipedia, the free encyclopedia