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281. Phil Plait's Bad Astronomy: Bad News
... What's New? Bad Astronomy . ... News . ... Mad Science . ... Site Info . ... Matt Lauer, the news reader was saying how the Shuttle was carrying a large piece of metal called a Wake Shield, which creates a very high grade vacuum behind it as it moves through space. ... After Mr. Lauer had finished, he, Katie Couric and Bryant Gumble all laughed at how hard the copy was to read, and how all three of them, three of NBC's top reporters , had no idea what Mr. Lauer had just said. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bad/news/lauer.html -- 18.1 Кб -- 09.04.2016
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282. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... My question is will small 5mm IR LED's work better than 5mm super-bright LED's. I've been told that IR works better, but if fish are cold blooded, you really shouldn't be able to detect them with IR correct? If the red spectrum is longer, I assume you should be able to see farther with the standard Red LED. On the other hand, is white light better than IR or red light? ...
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Ссылки http://www.badastronomy.com/mad/1999/irh20.html -- 19.5 Кб -- 09.04.2016
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283. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Bitesize Astronomy . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Area of science: Astronomy . ... Even if we know that the gravitationnal force of the sun is greater than the gravitationnal force of the moon, we know that tides are more influenced by the moon than the sun.Why? The best answer I got is that it's just because the moon is closer to earth than the sun, but how does that make a difference? ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/mad/1997/tides.html -- 19.3 Кб -- 09.04.2016
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284. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Mad Science . ... How many stars are in the constalation 'orion'? ... Using the biggest telescopes in the world, I am sure you can see many millions of stars inside Orion's borders. Not only that, but there are many stars that are blocked by gas and dust in our Galaxy, If we could sweep that away, you would see billions of stars! And finally, there are lots of other galaxies, extremely faint, in Orion, each containing many billions of stars. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/mad/1997/orion.html -- 19.3 Кб -- 09.04.2016
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285. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Mad Science . ... Please explain what the fourth dimension is and how it can be visualized. ... I never found any really good books describing it, although there is one fun one called "The Fourth Dimension Simply Explained". ... The fourth dimension would be if you could draw a line perpendicular to all three lines. ... If you could move in the fourth dimension, you could go straight out from the center of the sphere, receding forever, but never actually touch the surface. ...
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Ссылки http://www.badastronomy.com/mad/1997/fourd.html -- 21.8 Кб -- 09.04.2016
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286. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Grade level: 7-9 . ... What is the density of a human being? ... You have probably heard that humans are more than 90% water. ... But density itself is the mass of an object divided by its volume. ... Mark the level of the water on the tub, perhaps with some tape (no doubt your parents won't like you scratching or marking the tub tile, even in the name of science). ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/mad/1997/float.html -- 20.2 Кб -- 09.04.2016
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287. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Mad Science . ... Hey, it's either this or one of those really irritating PayPal donation buttons here. ... By "biggest", you could mean brightest seen here at the Earth, or possibly the most energetic one ever seen (which does not necessarily mean brightest!) ... One star that blew up in the year 1066 didn't get very bright at all, even though it was pretty close by as those things go. ... One more thing: the typical supernova is bright for a couple of months or so. ...
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Ссылки http://www.badastronomy.com/mad/1997/bigsn.html -- 20.7 Кб -- 09.04.2016
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288. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Bitesize Astronomy . ... Mad Science . ... Site Info . ... The Nine Planets . ... Area of science: Astronomy . ... Since all the planets orbit the Sun with a given period, at some point they must all line up. ... I have written a special web page talking about this, as well as other common misconceptions in astronomy. Take a look at the page about alignments (which has links to other sites about them as well), or you can go to the Bad Astronomy front page. 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/mad/1997/align.html -- 18.9 Кб -- 09.04.2016
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289. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Bitesize Astronomy . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Why does a wheel seem to move backwards as it speeds up? ... Now every time you take a picture, the wheel has not quite made it all the way around; maybe it will have gone 350 degrees around, so it's 10 degrees behind the first frame. ... If there are 8 spokes, each at 45 degrees, then you can take frames 8 times as fast, and so on. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/mad/1996/wheel.html -- 20.7 Кб -- 09.04.2016
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290. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Mad Science . ... The Nine Planets . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... What is the latest star to be discovered? ... Imagine how many can be found with a really BIG telescope! ... I recently worked with an image from Hubble Space Telescope where we can see tens of thousands of stars, and perhaps a tenth of them or more have never been detected before. ... Besides stars, new planets are being found all the time too. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/mad/1996/stars.html -- 20.3 Кб -- 09.04.2016
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291. Phil Plait's Bad Astronomy: Misconceptions
... Bad Astronomy . Misconceptions . ... Book Store . ... The Nine Planets . ... Truman Collins' planetary alignment page has a link to a company that is selling a book all about the upcoming "disaster" in May of 2000 . ... It is quite easy to show that not only does this conjunction have no measurable effect on the Earth, but that the monthly motions of the Moon completely overwhelm any tiny effect the planets can generate. ... 2008 Phil Plait. ... Check out my book "Bad Astronomy" . ...
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Ссылки http://www.badastronomy.com/bad/misc/align.html -- 21.9 Кб -- 09.04.2016
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292. Phil Plait's Bad Astronomy: Bad TV
... Bad Astronomy . ... On Sunday, March 23 rd , the television "superstation" TBS aired a show called "Fire From the Sky", yet another in a long line of documentaries about imminent doom from an asteroid collision. ... They aren't kidding when they say it's a matter of global life and death, and it's terrible that there isn't enough money being spent on searching for Earth crossing asteroids. ... Like "Asteroid", one of their animations showed a cloud of asteroids very close to each other. ...
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Ссылки http://www.badastronomy.com/bad/tv/skyfire.html -- 22.1 Кб -- 09.04.2016
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293. Phil Plait's Bad Astronomy: SPOILERS: Review: Deep Impact
... Bad Astronomy . ... The Astronomy of Deep Impact . ... Also, at the bottom of this page is a list of links to other sites about comet impacts that you are welcome to browse. ... Good: The problem here is small: using a flashlight outside at night ruins your dark vision. ... Incidentally, there is a hidden piece of Bad Astronomy in this scene as well: the government would have no chance of hiding the existence of this comet for a year. ... Bad: We send astronauts to land on The Comet to blow it up. ...
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Ссылки http://www.badastronomy.com/bad/movies/di2.html -- 48.9 Кб -- 09.04.2016
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294. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Mad Science . ... Area of science: Earth Sciences . ... i know that the earth is round but what i see it is not. can you please explain? thank you . ... If it were flat, the horizon would be exactly 90 degrees from the zenith, but that would be obviously untrue if the Earth were very small. ... If the Earth were flat, the horizon would be infinitely far away, but it isn't. The horizon is actually only a few kilometers away (depending on your elevation). ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/mad/1997/earth.html -- 19.6 Кб -- 09.04.2016
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295. Phil Plait's Bad Astronomy: Mad Science
Blog . ... Bad Astronomy . ... Bulletin Board . ... Bitesize Astronomy . ... Bad Astro Store . Mad Science . ... Site Info . Search the site . ... RELATED SITES . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Here are the questions and answers I have from 2000. ... 2008 Phil Plait. ... Q 2000 . Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...
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Ссылки http://www.badastronomy.com/mad/2000/index.html -- 18.6 Кб -- 09.04.2016
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296. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . Mad Science . ... Site Info . Search the site . ... RELATED SITES . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Here are the questions and answers I have from 1999. ... February 8, 1999) . ... May 4, 1999) . ... October 31, 1999) . ... August 11, 1999) . ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...
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Ссылки http://www.badastronomy.com/mad/1999/index.html -- 19.2 Кб -- 09.04.2016
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297. Phil Plait's Bad Astronomy: Mad Science
Blog . ... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . Mad Science . ... Site Info . Search the site . ... RELATED SITES . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Here are the questions and answers I have from 1998. ... Is it possible for a giant black hole to crush under it's own gravity? ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...
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Ссылки http://www.badastronomy.com/mad/1998/index.html -- 18.6 Кб -- 09.04.2016
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298. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . Mad Science . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Here are the questions and answers I have from 1997. ... January 7, 1997) . ... February 11, 1997) . ... March 3, 1997) . ... May 23, 1997) . ... June 3, 1997) . ... August 11, 1997) . ... 2008 Phil Plait. ... Q 1997 . ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...
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Ссылки http://www.badastronomy.com/mad/1997/index.html -- 20.4 Кб -- 09.04.2016
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299. Phil Plait's Bad Astronomy: Mad Science
... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . Mad Science . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Here are the questions and answers I have from 1996. How did astronomers first find the distance to the Sun? ... November 10, 1996) . ... Does the Sun rotate? ... December 4, 1996) . ... 2008 Phil Plait. ... Q 1996 . ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...
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Ссылки http://www.badastronomy.com/mad/1996/index.html -- 20.6 Кб -- 09.04.2016
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300. Phil Plait's Bad Astronomy: Misconceptions
... Bad Astronomy . ... Every few months, one of a series of questions comes up on the USENET group sci.astro involving tides, or the rotation of the Moon, or the recession of the Moon from the Earth. ... Why the Moon's rotation period is the same as the length of time it takes to orbit the Earth (same as number 1, but phrased differently). ... But when this happens, the time it takes for the Earth to rotate once will be slowed to exactly the same time it takes for the Moon to go around the Earth once! ...
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Ссылки http://www.badastronomy.com/bad/misc/tides.html -- 26.0 Кб -- 09.04.2016
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