https://padlet.com/emads/xray en-us 2017-04-24 18:46:38 UTC 2025-11-03 13:04:50 UTC hello@padlet.com emads https://padlet.com/emads/xray/wish/167940112 X-Rays are a type electromagnetic radiation, meaning its waves are transmitted in multiple frequencies and wavelengths. Found on the electromagnetic spectrum, these can be classified either as a soft X-Ray or a hard X-ray. The spectrum is organized in order of decreasing wavelength and increasing energy and frequency, and the location of x-rays means that the wavelengths of x-ray waves are short, yet they have a high frequency and energy. The graphic below shows these characteristics in detail: the high frequency and wavelength can be seen, as well as its position between Ultraviolet and Gamma Ray radiation.]]> 2017-04-24 18:47:53 UTC https://padlet.com/emads/xray/wish/167940112 emads https://padlet.com/emads/xray/wish/167941203 X-Ray waves have a wavelength of anywhere between 0.1 and 10 nanometers, and the frequency (of a hard x-ray) is anywhere from 3 × 10¹⁶ to 3 × 10¹⁸ Hz - they have the second-highest frequency on the electromagnetic spectrum! X-ray waves are also very high-energy. In order for them to penetrate through a solid (like skin, muscle, or tissue), the electrons have to be moving fast enough. NASA has found that X-ray light actually tends to act more like a particle than a wave, which is another reason why its energy is so high. More specifically, x-rays have energy between 100 eV and 100 keV, or 1.6e-17 to 1.60e-14 joules. ]]> 2017-04-24 18:50:51 UTC https://padlet.com/emads/xray/wish/167941203 emads https://padlet.com/emads/xray/wish/167942333 In 1895, German professor Wilhem Conrad Röntgen had crystals next to a high-voltage cathode ray tube. He noticed that they put out a slight florescent glow and decided to take a picture of his wife's hand. When he did, he found that the image clearly showed her bones and wedding ring. Once his discovery was made public, scientists all around the world were fascinated with the phenomenon. The name "x-ray" came from Röntgen's nickname of "x," which symbolized his unknown discovery, and his colleagues' suggestions of calling it a "ray."]]> 2017-04-24 18:54:12 UTC https://padlet.com/emads/xray/wish/167942333 emads https://padlet.com/emads/xray/wish/167958526 Although x-rays can be very helpful, (see "real life examples") they can also be harmful. Exposure to high amounts of radiation can cause radiation sickness, which can lead to death. The atomic bombs dropped in Hiroshima and Nagasaki and nuclear power plant accidents, like Chernobyl and Fukushima, caused many deaths and long-lasting health issues. People that weren't immediately killed from the disasters faced atom decay and cancer in the remaining years of their lives, and since the radiation levels were so high, burns and damaged tissue were just as common. However, these are extreme effects, and when the human body is exposed to smaller amount of radiation, the severity of issues decreases. Fatigue, nausea, irritated skin, slight burns, and hair loss are seen in cancer patients, but are issues that can be easily remedied. ]]> 2017-04-24 19:55:30 UTC https://padlet.com/emads/xray/wish/167958526 emads https://padlet.com/emads/xray/wish/167962769 1. An x-ray machine is possibly the most common and well-known use of x-rays. It fires a beam of electrons at a target, and if there is enough energy, x-rays are produced. With this machine, medical personnel can take photos of bones to check for breaks or fractures - the rays can penetrate skin and tissue but not bones.
2. X-rays also play an important part in airport security: TSA agents can look inside bags to make sure that nothing illegal is being stored in them, as the rays again penetrate the luggage but not liquids or other objects.
3. Art historians can use x-rays to check if a painting has been painted over or see if the work is truly authentic. They can find the materials, beginning sketches, and type of paper just by doing a simple x-ray, and they're used commonly to find the origin of the work as well as it's history.
4. They (x-rays) also aid doctors in fighting cancer cells. After giving a patient medicine that sensitizes the cancer cells, high-energy radiation targets the cells and tumors in hope of shrinking or killing them - which it usually does. Fifty percent of cancer patients receive this treatment, but radiation therapy is used to treat other diseases, like thyroid eye disease and trigeminal neuralgia. ]]> 2017-04-24 20:16:17 UTC https://padlet.com/emads/xray/wish/167962769 emads https://padlet.com/emads/xray/wish/167978706 2017-04-24 22:07:36 UTC https://padlet.com/emads/xray/wish/167978706 emads https://padlet.com/emads/xray/wish/167978940 2017-04-24 22:09:59 UTC https://padlet.com/emads/xray/wish/167978940 emads https://padlet.com/emads/xray/wish/167979169 2017-04-24 22:13:06 UTC https://padlet.com/emads/xray/wish/167979169 emads https://padlet.com/emads/xray/wish/167980196 2017-04-24 22:16:59 UTC https://padlet.com/emads/xray/wish/167980196 emads https://padlet.com/emads/xray/wish/167980391 a: a traditional x-ray of bones is shown
b: the damage after radiation-releasing atomic bombs were dropped on Japan
c: an x-ray of Picasso's "The Guitarist" revealed a woman nursing a child behind the actual painting]]> 2017-04-24 22:20:01 UTC https://padlet.com/emads/xray/wish/167980391 emads https://padlet.com/emads/xray/wish/167980797 2017-04-24 22:25:23 UTC https://padlet.com/emads/xray/wish/167980797