Questions. Back to main course page John D.
Norton Department of History and Philosophy of Science University of Pittsburgh Here are the questions that were asked in the description in the course catalog... Answered. Do astronauts age more slowly? Image credit: NASA/Sandra Joseph and Kevin O'Connell Nov. 16, 2009. How can special relativity know that these effects will happen? At first this seems impossible. What about another observer that chases after the light signal at, say, half the speed of light. How can that be? So rapidly moving clocks slow. Can a finite universe have no edge? Contrary to appearances, this is not a medieval woodcut, but a 19th century wood engraving mimicking the medieval style.
What is this question asking? Can both be possible at the same time? Image credit: NASA Both can indeed happen in a more restricted way in a very familiar example. Of course the example seems strained. Could the analogous thing happen for a three dimensional space? Can time have a beginning? 2. Greg Rutter's Definitive List of The 99 Things You Should Have Already Experienced On The Internet Unless You're a Loser or Old or Something. Mix 20 millions songs !
The Scale of the Universe. Freddie Gibbs "Boxframe Cadillac" In Bb 2.0 - a collaborative music/spoken word project - 12 videos. DumbassxD is doing The Ugly Dance. Touch Effects. Is Our Childrens Learning? Your Age on Other Worlds. Want to melt those years away?
Travel to an outer planet! <div class="js-required"><hr> This Page requires a Javascript capable browser <hr></div> Fill in your birthdate below in the space indicated. (Note you must enter the year as a 4-digit number!) Click on the "Calculate" button. The Days (And Years) Of Our Lives Looking at the numbers above, you'll immediately notice that you are different ages on the different planets. The earth is in motion. The top-like rotation of the earth on its axis is how we define the day. The revolution of the earth around the sun is how we define the year.
We all learn in grade school that the planets move at differing rates around the sun. Why the huge differences in periods? Johannes Kepler Tycho Brahe Kepler briefly worked with the great Danish observational astronomer, Tycho Brahe. Here you see a planet in a very elliptical orbit. W-horz3.jpg (JPEG Image, 580 × 1207 pixels) - Scaled (51%) How to control your dreams. Eye Candy: OK Go's Insane Rube Goldberg Machine. Explanation of E=mc2. Glass Half Empty. What if a glass of water was, all of a sudden, literally half empty?
—Vittorio Iacovella The pessimist is probably more right about how it turns out than the optimist. When people say “glass half empty”, they usually mean something like a glass containing equal parts water and air: Traditionally, the optimist sees the glass as half full while the pessimist sees it as half empty. This has spawned a zillion joke variants—e.g., the engineer sees a glass that’s twice as big as it needs to be, the surrealist sees a giraffe eating a necktie, etc. But what if the empty half of the glass were actually empty—a vacuum? The vacuum would definitely not last long. For our scenario, we’ll imagine three different half-empty glasses, and follow what happens to them microsecond by microsecond. In the middle is the traditional air/water glass.
We’ll imagine the vacuums appear at time t=0. For the first handful of microseconds, nothing happens. When the bottle is struck, it’s pushed suddenly downward. Scope.swf (application/x-shockwave-flash Object) Shakespeare Insult Kit. Shakespeare Insult Kit Since 1996, the origin of this kit was listed as anonymous.
It came to me on a piece of paper in the 90's with no attribution, and I thought it would make a cool web page. Though I searched for the origin, I could never find it. In 2014, Lara M informed found the originating author. It appears to be an English teacher at Center Grove High School in Greenwood Indiana named Jerry Maguire. Combine one word from each of the three columns below, prefaced with "Thou": My additions: cullionly whoreson knave fusty malmsey-nosed blind-worm caluminous rampallian popinjay wimpled lily-livered scullian burly-boned scurvy-valiant jolt-head misbegotten brazen-faced malcontent odiferous unwash'd devil-monk poisonous bunch-back'd toad fishified leaden-footed rascal Wart-necked muddy-mettled Basket-Cockle pigeon-liver'd scale-sided.