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hyperphysics

Atomic Clock

Very accurate clocks can be constructed by locking an electronic oscillator to the frequency of an atomic transition.

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Hits: 1650

The story of atomic clocks

A long read about the history of the atomic clocks

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Hits: 2030

Explore Big History

Interactively explore the timeline of the universe.

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Hits: 591

How Atomic Clocks Work

A brief description of how atomic clocks work to keep track of time accurately. From HowStuffWorks.com.

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Hits: 1277

How do atomic clocks work?

A great short article on how atomic clocks work from NPL

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Hits: 1838

Squishy Circuits

An activity to do at home to explore the world of circuits. Make two types of dough, one that carries electricity and one that doesn't, to create all sorts of circuits and explore how they work.

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Hits: 16

The Untold Story of Getting from Here to There | Time and Navigation

A site from the Smithsonian dedicated to exploring the relationship between time and navigation from how sailors needed accurate clocks to determine their longitude to how satellites navigation ...

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Hits: 310

Fowler's Physics

Various applets allowing results to be taken for demonstration purposes.

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Hits: 1319

Line Rider

A fun toy that lets you build a sledge run and then test it out. You'll need a good feel for the laws of motion to get results!

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Hits: 4547

Seeking the Cosmic Dawn

A look at the results from BICEP2 detector in the south pole which gives evidence for inflation happening at the start of the universe.

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Hits: 182

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