Herman Trivilino's latest activity

Conservation of energy was in serious danger of being abandoned when experiments by Curie seemed to show that radium salts were creating...

When Newton wrote about action and reaction he was referring to forces. It was the 1680's. The concept of energy, if it even existed at...

The table doesn't move relative to the floor in any frame.

Up to a point - depending on the brain. It actually happened in the lighthouse. What I saw was much easier to contemplate than a...

In the 19th century researchers unified two different different types of phenomena, mechanical interactions and thermal interactions...

Our brains do that.

In 1993 my immediate predecessor John Hubisz "retired" to teach in a different state, he had a building constructed to serve as his...

Here's the problem. Textbooks and instructors often refer to the gravitational potential energy of an object, such as a ball or in your...

We sold our set of encyclopedias for $1 by advertising in our local Facebook group. Digital is taking over. I was shocked when students...

That's a good way to make sure that they go to someone who has at least some appreciation for them.

I kept my textbooks for decades because if I wanted to look something up there's no substitute for revisiting a page I learned from...

In this scenario is the clock at rest? There are an infinite number of reference frames for which your example is true, and those...

One time at a department meeting the chair declared that some educational data we'd collected was "bad" because it didn't show the...

It's smaller than that! We don't have 1 ft of pressure gradient. The 1 ft is the amount of pressure, but the height of the bag, just a...

Einstein was very careful about the way he worded the 2nd Postulate. He stated the speed of light (in a vacuum) is indepedendent of the...