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Science & Environment - Drake equation: How many alien civilizations exist?

Science & Environment - Drake equation: How many alien civilizations exist?
Are we alone? It is a question that has occupied mankind for centuries. Today, we live in an age of exploration, where robots on Mars and planet-hunting telescopes are beginning to allow us to edge closer to an answer. While we wait to establish contact, one technique we can use back on Earth is an equation that American astronomer Frank Drake formulated in the 1960s to calculate the number of detectable extraterrestrial civilizations may exist in the Milky Way galaxy. It is not a rigorous equation, offering a wide range of possible answers. Instead it is more a tool used to help understand how many worlds might be out there and how those estimates change as missions like Kepler, a telescope that is currently searching for Earth-like planets, begin to discover more about our universe.

http://www.bbc.com/future/story/20120821-how-many-alien-worlds-exist

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Adam Green: The Spectacular Thefts of Apollo Robbins, Pickpocket A few years ago, at a Las Vegas convention for magicians, Penn Jillette, of the act Penn and Teller, was introduced to a soft-spoken young man named Apollo Robbins, who has a reputation as a pickpocket of almost supernatural ability. Jillette, who ranks pickpockets, he says, “a few notches below hypnotists on the show-biz totem pole,” was holding court at a table of colleagues, and he asked Robbins for a demonstration, ready to be unimpressed. Robbins demurred, claiming that he felt uncomfortable working in front of other magicians.

Diagram A diagram is a two-dimensional geometric symbolic representation of information according to some visualization technique. Sometimes, the technique uses a three-dimensional visualization which is then projected onto the two-dimensional surface. The word graph is sometimes used as a synonym for diagram.

Scientists suggest we might be overlooking alien communications A new theory has been put forward in the astrophysics world suggesting people have assumed too much when looking for alien attempts to communicate with Earth. The theory, proposed by James Benford, his son, Dominic Benford, and Jame's twin brother Gregory Benford, published in two papers in June, have generated a great deal of excitement in the science world. The Benfords looked at the issue of communications and concluded that aliens, much like humans, would want to economize their resources where possible, and thus they would not send out communications resembling what scientists have expected would be sent.

Vatican Official Declares Extraterrestrial Contact Is Real You are here UFO News UFO Digest will provide you with the latest UFO news from around the world. We will share our views on UFOs along with keeping you up-to-date with the latest videos and photographs of UFO sightings from across the globe. From abductions by UFOs to encounters of UFOs we will ensure that you have the most recent UFO News available. UFO News Today

Physicist uses math to avoid traffic penalty A physicist faced with a fine for running a stop sign has proved his innocence by publishing a mathematical paper, and has even won a prize for his efforts. Dmitri Krioukov is a physicist based at the University of California in San Diego. When faced with a court hearing over allegedly driving through a stop sign, he put together a paper called The Proof of Innocence, which he has since published. The abstract for the paper reads: "A way to fight your traffic tickets." Flowchart A simple flowchart representing a process for dealing with a non-functioning lamp. A flowchart is a type of diagram that represents an algorithm, workflow or process, showing the steps as boxes of various kinds, and their order by connecting them with arrows. This diagrammatic representation illustrates a solution to a given problem. Flowcharts are used in analyzing, designing, documenting or managing a process or program in various fields.[1]

Simulation hypothesis The simulation hypothesis (simulation argument or simulism) proposes that reality is a simulation and those affected are generally unaware of this. The concept is reminiscent of René Descartes' Evil Genius but posits a more futuristic simulated reality. Origins[edit] 12 Pictures of Space You Won't Believe Aren't Photoshopped Look, we all know that space is the final frontier, that space is cold and unforgiving and that in it, nobody can hear you scream. But what you might not know is that, when it thinks nobody is looking, space puts on a frilly dress, covers its forearms in honey and spins around until it falls over ... because space is just flat-out crazy as hell. Oh, don't take our word for it or anything; we have photographic evidence. #12.

Dr. Steven Greer’s Response to Stephen Hawking’s Comment on Aliens « News from Behind the Scenes by Dr. Stephen Greer, The Disclosure Project, April 26, 2010 Published here: Thursday, April 29, 2010 @ 5:44 AM Dr. President Obama Would Choose to Fight the Horse-Sized Duck - Conor Friedersdorf The fact that he'd be less physically intimidated by 100 whinnying, duck-sized horses hardly matters. President Obama's handlers failed to alert their boss to the most clever question he was asked on Reddit in August: "Would you rather fight 100 duck-sized horses or one horse-sized duck?" Staffers with more Reddit savvy could've prepped an answer. Last autumn, New York Times columnist Nicholas Kristof had a quick response. "Definitely one horse-sized duck," he typed. "Then I'd distract it with some cracked corn and, as it gobbled it up, I'd jump on its back and take it for a flight."

Pie chart Pie chart of populations of English native speakers Pie charts are very widely used in the business world and the mass media.[3] However, they have been criticized,[4] and many experts recommend avoiding them,[5][6][7][8] pointing out that research has shown it is difficult to compare different sections of a given pie chart, or to compare data across different pie charts. Pie charts can be replaced in most cases by other plots such as the bar chart. Example[edit] A pie chart for the example data. The following example chart is based on preliminary results of the election for the European Parliament in 2004.

Astrobiologists Find Ancient Fossils in Fireball Fragments On 29 December 2012, a fireball lit up the early evening skies over the Sri Lankan province of Polonnaruwa. Hot, sparkling fragments of the fireball rained down across the countryside and witnesses reported the strong odour of tar or asphalt. Over the next few days, the local police gathered numerous examples of these stones and sent them to the Sri Lankan Medical Research Institute of the Ministry of Health in Colombo. After noticing curious features inside these stones, officials forwarded the samples to a team of astrobiologists at Cardiff University in the UK for further analysis. The results of these tests, which the Cardiff team reveal today, are extraordinary.

Top 10 Most Important Discoveries in Astronomy Astronomy is the cool, sexy field of the scientific world. Sure, biologists and chemists are out there curing diseases or whatever, but they’re just so boring. Meanwhile, astronomers are busy showing us sweet pictures of distant planets and playing around with telescopes the size of buildings. How can you compete with that?

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