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Are perpetual motion machines possible?

A wheel that spins forever; a bird that never quenches its thirst; a clock that never stops ticking, an endless source of free energy. These are but the dreams of inventors striving to make perpetual motion machines, machines that can work forever without any energy input. Are these machines possible without violating the laws of physics? No.
Season 1 Episode 11 Length 05:01 Premiere: 12/08/15

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Season 1 Episodes

Calculating Pi with Darts
S1 E925 Length 05:47 Premiere Date 06/12/16

Does height matter in sports?
S1 E32 Length 06:35 Premiere Date 08/10/16

What are antibubbles?
S1 E31 Length 06:11 Premiere Date 08/02/16

Can you solve this pier puzzle?
S1 E30 Length 04:58 Premiere Date 07/19/16

How to shrink a quarter with electricity
S1 E29 Length 07:48 Premiere Date 07/12/16

Should you go to Mars? ft Bill Nye
S1 E28 Length 09:04 Premiere Date 06/28/16

Exploding soda cans with electromagnets in SLOW MOTION ft Joe Hanson
S1 E27 Length 07:55 Premiere Date 06/14/24

World's Easiest DIY Electric Train
S1 E26 Length 05:44 Premiere Date 06/07/16

How SMOOTHNESS of a SOCCER BALL affects curve
S1 E25 Length 05:44 Premiere Date 05/24/16

Bizarre spinning toys
S1 E24 Length 04:56 Premiere Date 05/03/16

How science explains monster waves
S1 E23 Length 05:49 Premiere Date 04/27/16

Could you replace your eye with a camera?
S1 E22 Length 05:37 Premiere Date 04/12/16

How does laser cooling work?
S1 E21 Length 05:27 Premiere Date 03/30/16

Can you call a cell phone in the microwave?
S1 E20 Length 07:05 Premiere Date 03/22/16

Is energy always conserved?
S1 E19 Length 05:16 Premiere Date 03/15/16

Quantum Cryptography Explained
S1 E18 Length 07:47 Premiere Date 03/01/16

Why do we care about gravitational waves?
S1 E17 Length 04:29 Premiere Date 02/19/16

Five Weird Ways to Put Out a Candle
S1 E16 Length 05:04 Premiere Date 02/09/16

The Black Hole Death Problem
S1 E15 Length 04:48 Premiere Date 02/02/16

Can you push a spacecraft with light?
S1 E14 Length 04:35 Premiere Date 01/19/16

Five amazing stars we've discovered in space
S1 E13 Length 06:25 Premiere Date 01/12/16

Five Physics Experiments for the Holidays
S1 E12 Length 02:51 Premiere Date 12/22/15

Are perpetual motion machines possible?
S1 E11 Length 05:01 Premiere Date 12/08/15

Are MRIs safe?
S1 E10 Length 06:35 Premiere Date 12/01/15

Avoid electric shock getting out of a car
S1 E9 Length 04:40 Premiere Date 11/10/15

Can you solve the boat puzzle?
S1 E8 Length 04:51 Premiere Date 10/27/15

AMAZING! Ferrofluid and Glow Sticks
S1 E7 Length 04:24 Premiere Date 10/20/15

Does this look white to you?
S1 E6 Length 04:50 Premiere Date 10/06/15

Epic Space Rescues
S1 E5 Length 06:19 Premiere Date 09/29/15

How 3D holograms work
S1 E4 Length 04:04 Premiere Date 09/15/15

Is this really 3D?
S1 E3 Length 05:02 Premiere Date 09/08/15

How to Make a Cloud in Your Mouth
S1 E2 Length 03:47 Premiere Date 08/25/15

How to Make a Hurricane on a Bubble
S1 E1 Length 03:28 Premiere Date 08/18/15

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