Гараа Угаах

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

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

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

Measure the Earth's Radius with a Stopwatch

Detecting gravitational waves

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

Shooting a hockey puck

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

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

The Luge track

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

Observe an Iridium Satellite Flare

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

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

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

Tools: Geometry and Time

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

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

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

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

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

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

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

slow version of animated HR diagram fast versio...

Enhancing Strategic Discourse Systematically us...

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

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

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

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

Animation courtesy of The Virtual Telescope Pro...

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

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

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

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

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