Гара Якоруда

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

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

Detecting gravitational waves

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

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

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

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

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

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

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

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

Tools: Geometry and Time

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

Shooting a hockey puck

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

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

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

Animation courtesy of The Virtual Telescope Pro...

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

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

slow version of animated HR diagram fast versio...

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

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

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

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

Enhancing Strategic Discourse Systematically us...

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

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

Observe an Iridium Satellite Flare

Measure the Earth's Radius with a Stopwatch

The Luge track

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

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

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

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