Rolf Landua and Anais Rassat explain the science behind vacuums.

The Nobel Foundation provides a brief story about the first vacuum tubes used in early electronic devices such as radios and phonographs and even the first computers.

Try this hands-on experiment to figure out how a vacuum cleaner works. Find out about pressure by using drinking straws.

This site provides a brief biography on William D. Coolidge, inventor of the X-ray tube, also known as the "Coolidge tube."

Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. All of the projects are easy to do. This one is a...

As part of a larger exhibit on science and the history of scientific instruments, this site examines a painting by Joseph Wright and its connection to the scientific studies of the vacuum. The painting, which is accompanied by a...

Tardigrades are ancient, fascinating creatures that can survive conditions that would kill most life forms, including extreme heat and absolute zero, extreme pressure and a vacuum, and deadly radiation. They can even survive being...

Students learn more about assistive devices, specifically biomedical engineering applied to computer engineering concepts, with an engineering challenge to create an automatic floor cleaner computer program. Following the steps of the...

This site provides a tour of the discovery and development of the transistor form PBS, including video and lesson plans.

An extensive site covering all aspects of Lee de Forest, his inventions, writings, and personal life. Find drawings and pictures of his audion tube and find out about his legacy, especially in the world of electronics.

A fast-paced game where you must eliminate the insects by sorting three types of bugs into jars, hitting flies with a fly swatter, picking ticks up with tweezers, or vacuuming up stink bugs.

Discusses the history of electronic banking, banking problems, vacuum tubes vs. transistors, magnetic ink character reading, handling paper at high speed, and the ERMA.

Economists do not operate in a vacuum. If an economist is going to suggest that the price of a good needs to be increased, he or she needs to consider who will bear the increase in costs. Will the costs be distributed equally or will one...

After the withdrawal of Syrian troops, Lebanon is faced with rebuilding its political structure. Unfortunately the nature of political parties in Lebanon could lead to a power vacuum. This Carnegie paper was written in 2006.

Light travels as transverse waves and can travel through a vacuum. Sound travels as longitudinal waves and needs to travel through a solid, liquid or gas. Read about the properties of light and of sound, and learn the differences between...

This lesson will orient the student to the operation of vacuum operated and hydraulically assisted power booster units. The student will be able to effectively diagnose and repair problems with these systems at the conclusion of the lesson.

The Galileo Project fact sheet profiles the life and work of Evangelista Torricelli (1608-1647), the Italian scientist and inventor.

Computers are one of the top 20 engineering innovations of the 20th century. Read the history behind this great invention.

An entertaining site that communicates ideas through cartoon drawings. Discover how simple machines and gadgets operate, such as fax machines and washing machines.

A page from the University of Maryland Physics Lecture Demonstration Facility. Provides directions for a teacher demonstration which utilizes a Bell jar and vacuum pump to show the dependency of boiling point upon pressure. Shows...

Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. An easy-to-do example includes using air pressure...

Examine how differences in air pressure affect objects with this classroom experiment.

This is a site from NASA that provides an activity where "You have invented a new material to use for the fuel tanks on the spacecraft. But before you send your new material into the harsh environment of space, you must test it on Earth...

At this website, find exercises for each of the "Twelve days of winter break." Stay fit during the holidays and work these simple exercises into your daily routine.