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The Elegant Universe: Part 3 PBS Airdate: November 4, 2003 NARRATOR: Now, on NOVA, take a thrill ride into a world stranger than science fiction, where you play the game by breaking some rules, where a new view of the universe pushes you beyond the limits of your wildest imagination. BRIAN GREENE (Columbia University): And no matter how many times I come here, I never seem to get used to it. NARRATOR: Can he help us solve the greatest puzzle of modern physics—that our understanding of the universe is based on two sets of laws that don't agree? NARRATOR: Resolving that contradiction eluded even Einstein, who made it his final quest. BRIAN GREENE: We really may live in a universe with more dimensions than meet the eye. AMANDA PEET (University of Toronto): People who have said that there were extra dimensions of space have been labeled crackpots, or people who are bananas. NARRATOR: A mirage of science and mathematics or the ultimate theory of everything? S. We see 400 employees in three years. Related:  Science News

Какую форму имеет наша Вселенная? (статья опубликована в журнале "Наука и Жизнь", N8, 2002 г.) В древности люди полагали, что живут на обширной плоской поверхности, хотя и покрытой кое-где горами и впадинами. Это убеждение сохранялось на протяжении многих тысяч лет, пока Аристотель в IV веке до н. э. не заметил, что уходящее в море судно пропадает из виду не потому, что по мере удаления уменьшается до недоступных глазу размеров. За прошедшие тысячелетия сделано множество открытий, накоплен колоссальный опыт. Последние наблюдения астрономов и исследования математиков показывают, что форму нашей Вселенной следует искать среди восемнадцати так называемых трехмерных ориентируемых евклидовых многообразий, причем претендовать на нее могут только десять. Наблюдаемая Вселенная Любые умозаключения о возможной форме нашей Вселенной должны опираться на реальные факты, полученные из астрономических наблюдений. Сразу же возникает вопрос: а какое именно многообразие представляет нашу Вселенную? Маловероятно, что мы живем в таком мире.

Documentarios.org Watch Full Episodes Online of NOVA on PBS | Becoming Human Part 1 Use one of the services below to sign in to PBS: You've just tried to add this video to your Watchlist so you can watch it later. But first, we need you to sign-in to PBS using one of the services below. You’ll be able to manage videos in your Watchlist, keep track of your favorite shows, watch PBS in high definition, and much more! You've just tried to select this program as one of your favorites. But first, we need you to sign-in to PBS using one of the services below. To get you watching PBS in high definition we need you to sign-in to PBS using one of the services below. You'll be able to manage videos in your Watchlist, keep track of your favorite shows, watch PBS in high definition, and much more! Don’t have a PBS Account? Creating an account is free and gets you: Access to High-Definition streamingA personal area on the site where you can access: Favorite ShowsWatchlistViewing HistoryEarly access to exciting new features

Российская Астрономическая Сеть. Watch Full Episodes Online of NOVA on PBS | Becoming Human Part 2 Use one of the services below to sign in to PBS: You've just tried to add this video to your Watchlist so you can watch it later. But first, we need you to sign-in to PBS using one of the services below. You’ll be able to manage videos in your Watchlist, keep track of your favorite shows, watch PBS in high definition, and much more! You've just tried to select this program as one of your favorites. To get you watching PBS in high definition we need you to sign-in to PBS using one of the services below. You'll be able to manage videos in your Watchlist, keep track of your favorite shows, watch PBS in high definition, and much more! Don’t have a PBS Account? Creating an account is free and gets you: Access to High-Definition streamingA personal area on the site where you can access: Favorite ShowsWatchlistViewing HistoryEarly access to exciting new features

Solar Eclipses for Beginners Introduction What is an eclipse of the Sun? What causes eclipses and why? How often do eclipses happen and when is the next eclipse of the Sun? You'll learn the answers to these questions and more in MrEclipse's primer on solar eclipses. Phases of the Moon Phases of The Moon The Moon is a cold, rocky body about 2,160 miles (3,476 km) in diameter. New Moon > New Crescent > First Quarter > Waxing Gibbous > Full Moon > Waning Gibbous > Last Quarter > Old Crescent > New Moon (again) The phase known as New Moon can not actually be seen because the illuminated side of the Moon is then pointed away from Earth. To many early civilizations, the Moon's monthly cycle was an important tool for measuring the passage of time. Geometry of the Sun, Earth and Moon During an Eclipse of the SunThe Moon's two shadows are the penumbra and the umbra. The Moon's Two Shadows An eclipse of the Sun (or solar eclipse) can only occur at New Moon when the Moon passes between Earth and Sun. 1. 2. Awesome Totality

Watch Full Episodes Online of NOVA on PBS | Becoming Human Part 3 Use one of the services below to sign in to PBS: You've just tried to add this video to your Watchlist so you can watch it later. But first, we need you to sign-in to PBS using one of the services below. You’ll be able to manage videos in your Watchlist, keep track of your favorite shows, watch PBS in high definition, and much more! You've just tried to select this program as one of your favorites. To get you watching PBS in high definition we need you to sign-in to PBS using one of the services below. You'll be able to manage videos in your Watchlist, keep track of your favorite shows, watch PBS in high definition, and much more! Don’t have a PBS Account? Creating an account is free and gets you: Access to High-Definition streamingA personal area on the site where you can access: Favorite ShowsWatchlistViewing HistoryEarly access to exciting new features

The Moon that went up a Hill but came down a planet Edited to add: I have taken the topic of this post and logically continued it in a post about Pluto. Every now and again I get an email from someone who tries to tell me that the moon orbits the Sun more than it orbits the Earth. On the face of it, their claim appears to hold water. For example, they’ll say that if you compare the orbital velocity of the Moon around the Earth (about 1 km/sec) to the orbital velocity of the Moon around the Sun (the same as the Earth’s velocity around the Sun, about 30 km/sec), you’ll see that the Moon’s orbit is always convex to the Sun; in other words, it doesn’t make a loopy pattern around the Sun, as you might expect: That diagram is exaggerated; on that scale the Moon’s combined path around the Earth and Sun would look pretty much like a circle (and to be clear, the link above doesn’t make the claim that the Moon orbits the Sun more than it does the Earth, it’s just pointing out the patterns). Whoa. Turns out, it orbits the Earth, despite these claims.

Environmental Science Journals Движение Небесных Тел » Новая эра Водолея :: 2012-2013 год переход в новую эру Центр тяжести Земли движется относительно центра масс системы Земля+Луна. Последний находится на линии, соединяющей центры масс Земли и Луны, на расстоянии, равном км от центра тяжести Земли, где - расстояние между Землей и Луной, массы которых равны Луна обращается вокруг Солнца по почти эллиптической орбите, пересекающейся с орбитой Земли, и движется не по инерции, а принудительно. К полнолунию скорость Луны увеличивается и становится больше скорости Земли на 1 км/с, а к новолунию - уменьшается и становится меньше скорости Земли на 1 км/с, поэтому Луна движется как бы наперегонки с Землёй, оказываясь то впереди неё, то позади. Средняя скорость обращения центра масс Луны и Земли вокруг Солнца составляет 30 км/с. 2) Центр тяжести системы Земля+Луна движется вокруг Солнца по орбите, элементы которой не являются постоянными, а являются функциями времени. . , в широте . 3) Центр Солнца движется относительно центра тяжести солнечной системы - барицентра. и лет). для Юпитера и для Сатурна ( 2.

Scientists Hear a Second Chirp From Colliding Black Holes Photo When astronomers announced in February that they had detected the ripples in space-time known as gravitational waves from a pair of black holes colliding, the discovery was hailed as the advent of a new window on nature. It is a way of hearing the universe instead of just looking at it, as well as a long-sought vindication of Einstein’s theory of gravity, general relativity. At the time, there were rumors that the discovery was not a fluke and that other gravitational-wave cataclysms had been recorded. Now it seems that black hole collisions may be frequent facts of nature, with humanity at least tuned in to the darker, deeper vibrations of nature. Audio The Sound of Two Black Holes Colliding, Again 0:010:00 On Wednesday, the same group of astronomers announced that they had detected a second pair of black holes that devoured each other in another cosmic cataclysm 1.4 billion years ago. The new discovery was announced at an astronomical meeting in San Diego. Video

Приложение 3. Статья Сергея Кудрявцева - Всё кругом враньё! От сомнений к фактам Неоспоримым фактом является относительное движение Земля – Солнце. Но вопрос, что вокруг чего движется? Коперник объяснял: ”Мы скользим в лодке по спокойной реке, и нам кажется, что лодка и мы в ней не подвижны, а берега “плывут” в обратном направлении, точно так же нам только кажется, что Солнце движется вокруг Земли. Основным доказательством, что Земля вращается вокруг Солнца, является явление под названием Годичный параллакс ближних звёзд. “Если перемещаться вдоль базиса АВ рис.1, то будет казаться, что предмет С смещается на фоне более далёких предметов. Удивительно, наблюдатель сместился на несколько тысяч километров в орбитальной плоскости, видит изменение на небесной сфере, а сместившись в этой же плоскости за 6 месяцев почти на 300 миллионов километров, базис увеличился почти в 100 000 раз, наблюдает всё те же незначительные изменения. Приведу пример относительного движения. “Самая простая система счёта времени называется звёздным временем. Рис. 2. Рис.3 . 1.

General Resources - Best Websites: Environment - LibGuides at Alverno College Best Websites for other disciplines are also available online Wisconsin Great Lakes Commission The Great Lakes Commission is a binational public agency dedicated to the use, management, and protection of the water, land, and other natural resources of the Great Lakes-St. Lawrence system. Among this site's resources are numerous publications and useful links related to the system's resource management. Wisconsin Regional Planning Commission This site provides basic information and planning services for the Southeastern Wisconsin Region.

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