
Electron Microscopes
Electron microscopes are scientific instruments that use a beam of highly energetic electrons to examine objects on a very fine scale. They are capable of achieving much higher magnification and resolution than traditional optical microscopes, allowing scientists to study the structure and properties of materials at the atomic and molecular level. Electron microscopes come in several different types, including transmission electron microscopes (TEMs), scanning electron microscopes (SEMs), and scanning transmission electron microscopes (STEMs). TEMs use a beam of electrons that passes through a thin sample to create an image, while SEMs use a beam of electrons that scans the surface of a sample to create an image. STEMs combine the capabilities of both TEMs and SEMs to provide even higher resolution images. Electron microscopes are widely used in fields such as materials science, biology, and nanotechnology.
Your Previous Searches
Random Picks
- Coolants: Coolants are substances used to remove heat from a system or a device. In the context of space and astronautical engineering, coolants are used to regulate the temperature of spacecraft and their components. The extreme temperatures in spac ... Read More >>
- Spacecraft Fuel: Spacecraft fuel refers to the propellant used to power the engines of a spacecraft. The type of fuel used depends on the mission and the type of engine being used. Chemical fuels, such as liquid hydrogen and liquid oxygen, are commonly used ... Read More >>
- Emergency Signal: An emergency signal is a distress call transmitted by a spacecraft or aircraft to request immediate assistance. Emergency signals can be transmitted through various means such as radio, satellite, or visual signals. The most common emergenc ... Read More >>
Top News

This week on "Sunday Morning" (April 20)...
A look at the features for this week's broadcast of the Emmy-winning program, hosted by Jane Pauley....
News Source: CBS News on 2025-04-17

Scientists detect strongest hints yet of life on a distant planet...
Scientists have detected unique chemical patterns similar to those produced by the Earth's algae and seaweed — raising the possibility of the presence of a warm ocean, perhaps teeming with life, on ...
News Source: NBC News on 2025-04-17

Is there life on another planet? Scientists find the strongest evidence yet...
Near a planet far, far away astronomers have found traces of chemicals that on Earth are only produced by living beings....
News Source: Al Jazeera English on 2025-04-17
Scientists find strongest evidence yet of life on an alien planet | CNN...
In a potential landmark discovery, scientists using the James Webb Space Telescope have obtained what they call the strongest signs yet of possible life beyond our solar system, detecting in an alien ...
News Source: CNN on 2025-04-17
Katy Perry's trip to space wasn't inspirational. It was tone-deaf marketing....
Katy Perry indulged in a space tourism trip Monday, courtesy of Jeff Bezos' company. It's the latest in a long line of missteps for the singer....
News Source: Business Insider on 2025-04-14