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The Arthur Ross Terrace will be closed this morning, Tuesday, October 21, for a private cultural observance. You many observe smoke and/or fire coming from the Terrace at that time. The FDNY has been notified in advance, and all safety precautions are in place.

The Terrace will reopen at 1 pm.

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A black hole with a mass of the Earth would be about the size of a marble.

Light has no weight and no mass.

When you move faster in space, you move slower in time.

Atomic Mobile

All Images: courtesy of AMNH

All living things contain carbon. Make a mobile of this elemental element with scissors, wire, pipe cleaners, and clay.

Einstein in Time

Photos: Einstein pledging (1940): courtesy of Hulton Archive/Getty; Time Magazine Cover: Time Magazine Cover; All other Einstein images: courtesy of the Albert Einstein Archives, The Hebrew University of Jerusalem, Israel

Equation Invasion

Photos: Michael Shara: courtesy of Denis Finnin, AMNH; Illustrations: Equation Invasion: Tony Persiani; Everyday Einstein: Daryll Collins; Light the Way: Space cop: Daniel Guidera; Electromagnetic Spectrum : Eric Hamilton

Explore one of the world's most famous equations: E=mc(2). What does it really mean?

Everyday Einstein: Black Holes

Kid photos: courtesy of Denis Finnin, AMNH; It's All Relative: Jim Paillot Rabbit, elephant, and ant: Francesco Santalacia; You Light Up My Life!: Cathy Sanchez Duvivier

A quick explanation of the bottomless dimples in space we call black holes.

Everyday Einstein: Lasers

Photos: Michael Shara: courtesy of Denis Finnin, AMNH; Illustrations: Equation Invasion: Tony Persiani; Everyday Einstein: Daryll Collins; Light the Way: Space cop: Daniel Guidera; Electromagnetic Spectrum: Eric Hamilton

Find out how Einstein's discoveries paved the way for the invention of lasers.

It's All Relative

Kid photos: courtesy of Denis Finnin, AMNH; It's All Relative: Jim Paillot; Rabbit, elephant, and ant: Francesco Santalacia; You Light Up My Life!: Cathy Sanchez Duvivier

A thought experiment explaining why time and space are different depending on your frame of reference.

Light Quest

All Photos: courtesy of AMNH

Light Speed

Photos: satellite: courtesy of NASA; Illustrations: Newton's Ball: and Light Speed: Eric Hamilton

A thought experiment explaining how the speed of light affects our lives.

Light the Way

Photos: Michael Shara: courtesy of Denis Finnin, AMNH; Illustrations: Equation Invasion: Tony Persiani; Everyday Einstein: Daryll Collins; Light the Way: Space cop: Daniel Guidera; Electromagnetic Spectrum: Eric Hamilton

Take a quick look at the fastest thing in the Universe.

Light, Matter, and Energy

Photos: Michael Shara: courtesy of Denis Finnin, AMNH; Illustrations: Equation Invasion: Tony Persiani; Everyday Einstein: Daryll Collins; Light the Way: Space cop: Daniel Guidera; Electromagnetic Spectrum: Eric Hamilton

Where did Einstein get his great ideas? Find out with this virtual tour.

Make Your Own Einstein Stationery

Illustrations: Stationery 1: Amanda Duffy Stationery 2: Tony Persiani Stationery 3: Eric Hamilton

Send a note to a friend with these colorful letterheads.

Mass Appeal

Kid photos: courtesy of Denis Finnin, AMNH; It's All Relative: Jim Paillot; Rabbit, elephant, and ant: Francesco Santalacia; You Light Up My Life!: Cathy Sanchez Duvivier

Bend your mind around this thought experiment explaining how space and time is like a trampoline.

Newton's Ball

Photos: satellite: courtesy of NASA; Illustrations: Newton's Ball and Light Speed: Eric Hamilton

Get your brain on the ball and explore why things stay in orbit with this thought experiment.

Nobody's Perfect

Photos: Einstein: courtesy of Agence France Presse

Einstein believed that messing up was a part of being successful-an idea that, itself, has proven relevance.

Physics Books

Explore physics with these 10 titles.

See the Light

All Photos: courtesy of AMNH

Take an enlightening look at light with these three easy experiments.

Space and Time

Kid photos: courtesy of Denis Finnin, AMNH; It's All Relative: Jim Paillot; Rabbit, elephant, and ant: Francesco Santalacia; You Light Up My Life!: Cathy Sanchez Duvivier

How do you describe your place in the 4th dimension?

Space Jell-O

Photos: courtesy of AMNH

Thanks to Einstein, we know that space bends around anything that has mass. Mix up some Jell-O, and bend your mind around this concept.

Thinking in Three Dimensions

All Photos: courtesy of AMNH

Time Travel Kit

Kid photos: courtesy of Denis Finnin, AMNH; It's All Relative: Jim Paillot; Rabbit, elephant, and ant: Francesco Santalacia; You Light Up My Life!: Cathy Sanchez Duvivier

Find out why Einstein might still be alive today if he had been traveling in a very, very fast spaceship all these years.

Train of Thought

Photos: satellite: courtesy of NASA; Illustrations: Newton's Ball and Light Speed: Eric Hamilton

Take your imagination on a wonderful, mind-bending trip with these "thought experiments"!

Views from Windows

Photos: courtesy of AMNH; Illustrations: Eric Hamilton

Stretch your imagination with a personal look at how the height and velocity of your vantage point affect the view.

Web Master

work was based on the ideas and discoveries of many other scientists. Learn more about them here.

You Light Up My Life

Kid photos: courtesy of Denis Finnin, AMNH; It's All Relative: Jim Paillot; Rabbit, elephant, and ant: Francesco Santalacia; You Light Up My Life!: Cathy Sanchez Duvivier

Find out how a man named Arthur Addington confirmed Einstein's General Theory of Relativity.

American Museum of Natural History

Central Park West at 79th Street
New York, NY 10024-5192
Phone: 212-769-5100

Open daily from 10 am - 5:45 pm
except on Thanksgiving and Christmas
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