Whoa! You can't favorite your own shop.

Whoa! You can't buy your own item.

Whoa! You can't favorite your own item.

Whoa! You can't add your own item to a list.

Add this item to a treasury!

You don't have any treasuries yet. Enter a title below to create one.

This item has been added.

View your treasury.
Vintage Radiometer - Space Age Sphere

Sorry, this item sold. You may also like:

Like this item?

Add it to your favorites to revisit it later.
Vintage Radiometer - Space Age Sphere Powered by the Sun! Solar Engine.

Made of Glass with a white card stock base and in it's with original Box. Sphere Measures: 5" T x 2 13/16" Diameter Base

Back of Box Reads

"Space Age Sphere"

"The vanes, or wings in the Radiometer are alternately dark and light in color.

When the light strikes these wings, it transfers heat to each one - but not to the same degree. The lighter wing reflects the rays, and the dark wing absorbs the rays.

Now, when the freely moving particles of air inside the Radiometer strike the light relective vanes, they take on very little energy and do not bounce off very fast.

However, when the atom strike the dark vanes, they take on a great deal of energy... and "kick" away at terrific speed.

Result: the vane begins to move, and continues to move as the bits of air continue to "kick" away from the dark-sided vane.

Naturally, the stronger the light, the more energy there is to "heat up" the dark wing...keeping the bits of air bouncing away at a faster and faster rate as the light gets brighter.

Made & Printed in U.S.A."

Vintage Radiometer - Space Age Sphere


  • Vintage item from the 1950s
  • Materials: glass, metal, cardboard
  • Ships worldwide from United States
  • Feedback: 312 reviews
  • Favorited by: 4 people