Bean Bag Isotopes

Introduction

Studies of radioactivity at the beginning of the 20th century made it possible to investigate the actual structure and mass of atoms. Gradually, evidence began to build that atoms of the same element could have different masses. These atoms were called isotopes. How are isotopes distinguished from one another? What is the average atomic mass of an element that has different isotopes?

The purpose of this activity is to investigate the mass properties and relative abundance of isotopes for the “bean bag” element (symbol, Bg) and to calculate the atomic mass of this element.

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What would happen to the climate if we stopped emitting greenhouse gases today?

AUTHOR

Richard B. Rood

Professor of Atmospheric, Oceanic and Space Sciences at University of Michigan

 

Imagine the smokestacks without the billowing clouds of greenhouse gas pollution. Continue reading

Van Gogh, the Scientist

The starry night

I’m not easily impressed, OK?

I know Van Gogh was a genius. If the point of this were “Van Gogh was a mad genius,” I would not be sharing this with you.

But I found this and I thought, “Oh, what a vaguely interesting thing.” And then I got to the part about the Hubble Space Telescope, and, let me tell you: Mind. Blown.

Van Gogh was a pretty cool artist (duh), but as it turns out…

HE WAS ALSO A SCIENTIST!

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