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Now, watch again as I put one of the little pha...

It might help to answer a few simple questions....

Copyright © Michael Richmond.This work is licen...

So, let's move the student farther away.(Click ...

Day 1 - 80 Click on the graph to see what happens.

Day 401 - 500 Click on the graph to see what ha...

Deep inside some stars,the conditions --- tempe...

slow version of animated HR diagram fast versio...

I've exaggerated the actual shifts by a factor ...

Now, what happens if we watch the ropeover a lo...

Measure the Earth's Radius with a Stopwatch

Click on the picture above to blink the two ima...

The Luge track

Shooting a hockey puck

What happens is that a small section of the pla...

All the waves we've seen so far havenot moved.W...

Detecting gravitational waves

Tools: Geometry and Time

Now, watch again as I put one of the little pha...

Click on each picture to see an animated sequen...

The other half of the time (25% overall), theph...

Now, suppose light acts like a wave instead.If ...

The spherical mini-waves expand outward and ove...

Observe an Iridium Satellite Flare

Look at the time between two successive peak po...

Here are the ships of the Red Fleetwhich happen...

(Click the image below to watch Red-Navy-time m...

To make things EVEN simpler,let's assume that t...

Copyright © Michael Richmond.This work is licen...

For example, consider a ball rolling towards a ...

Enhancing Strategic Discourse Systematically us...

So, putting it all together, if light behaves l...

Animation courtesy of The Virtual Telescope Pro...

Joe then hops onto the Green Navy ship Green Fl...

Since 50% of the photons from the laser will pa...