Exploring Electromagnetic Radiation Waves in the Universe
Electromagnetic radiation waves, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays, play diverse roles in astronomy and technology. Understanding their properties, wavelengths, frequencies, and detection methods sheds light on their applications and significance in various aspects of our daily lives and the universe.
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Presentation Transcript
Electromagnetic radiation waves Waves are three dimensional Waves vibrate in all planes around a center line. The waves have high points called crests. Waves also have low points called troughs. The distance from one crest to the next crest is called a wavelength. *The number of waves passing a given point in one second is called the frequency. Wave length
Remember radio waves are longand gamma rays are small Radio-TV -Microwave- Infrared - VISIBLE -Ultraviolet -X-rays - Gamma- Cosmic
Radio (Longest electromagnetic waves) Emitted by Astronomical Objects Radio Station Transmitters Detected by Ground based radio telescopes *If you turn on a radio, it will convert the radio wave energy into sound energy. dish for radio waves gbt_5
Microwave photo of microwave oven usappliance_1733_8257699 Emitted by: Gas clouds collapsing into stars Microwave Ovens Radar Stations Cell Phones photo of spacecraft MAP Spacecraft Portrait, Computer rendering Detected by Microwave Telescopes Food (heated) Cell phones Radar (systems)
Infrared (Heat or Thermal) Are you a source of infrared? YES you are! photo of remote control Click here for a larger image. Emitted by Sun and stars (Near) TV Remote Controls Food Warming Lights (Thermal) *Everything at room temperature or above,=HEAT Detected by Infrared Cameras TVs, VCRs, Your skin
Visible Each color is a different size wave. Red the longest & violet the shortest Emitted by The sun and other astronomical objects Laser pointers Light bulbs RoyG.Biv Detected by Cameras (film or digital) Human eyes Plants (red light) Telescopes
Ultraviolet Sunburn / black light He can get skin cancer! Emitted by Tanning booths (A) The sun (A) Black light bulbs (B) UV lamps Detected by Space based UV detectors UV Cameras Flying insects (flies)
X-ray Emitted by Astronomical objects X-ray machines CAT scan machines Older televisions Radioactive minerals Airport luggage scanners Detected by Space based X-ray detectors X-ray film CCD detectors
Gamma Ray (Short electromagnetic waves but more energetic) incredible hulk The Incredible Hulk - Incredible Hulk, The - Pic 1 ( Glossy Photos ) Emitted by Radioactive materials Exploding nuclear weapons Gamma-ray bursts Solar flares Detected by --Geiger counters Gamma detectors and astronomical satellites Medical imaging detectors
How big are the waves? A great question! Radio waves= (Buildings to human size); Microwaves (Humans-beetles); Infrared waves (Eye of a needle); Visible waves (microscopic size)! WOW! All the rest are the size of molecules, atoms, atomic nuclei and smaller..
