When it comes to observing stars, our eyes have their limitations. Take a look at how astronomers combat these limits and accurately measure the distances between celestial bodies.
Study: John Michell and Black Holes Case Study: Fossil
While refracting and reflecting telescopes use different means of collecting light, the same principle applies to both—the bigger the aperture, the more light collected.
Study: John Michell and Black Holes Case Study: Fossil
For most of human history, recording a star meant describing it with words or drawing a picture. The 19th-century invention of photography changed that—only to be revolutionized by digital imaging.
Study: John Michell and Black Holes Case Study: Fossil
All the color photos of astronomical phenomena that we see in magazines and books begin as three separate images—one red, one green, and one blue. Explore how CCD cameras and their color filters work.
Study: John Michell and Black Holes Case Study: Fossil
You can’t see the Sun’s ultraviolet rays with your eyes—you just see their results on your freckled, tanned, or sunburned skin. Build a bracelet that immediately detects these invisible rays.
Study: John Michell and Black Holes Case Study: Fossil
It probably comes as no surprise that telescopes do a better job of collecting light and observing outer space than your eyes. But do you know why? (Hint: the answer is NOT magnification!)
Study: John Michell and Black Holes Case Study: Fossil
This unit is designed for a middle school science class. Students create their own ecosystem using a piece of sod and other materials to create a “town” and analyze ecological impact of the human p…
Study: John Michell and Black Holes Case Study: Fossil
This unit is designed for eighth to tenth grade students. The lessons are focused around the loss of Arctic sea ice and its affect on the Arctic food web. The lesson concludes with the students wri…
Study: John Michell and Black Holes Case Study: Fossil
…
Study: John Michell and Black Holes Case Study: Fossil
Curator Emeritus, Department of Mammalogy, Division of Vertebrate Zoology
most recently by studying population dynamics of fossil
