Articles on x-rays

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Smoking is the biggest cause of preventable death in the U.S. A test for long-time smokers might be able to detect lung cancer earlier, thereby saving lives. Lightspring/Shutterstock.com

The test that could save the life of a long-time smoker you know

Low-dose CT scans can detect lung cancer in smokers and former smokers at an early and sometimes treatable stage. Why are so few smokers and former smokers getting them?
U.S. Vice-President Mike Pence speaks about the creation of a United States Space Force on Aug. 9, 2018 at the Pentagon. (AP Photo/Evan Vucci)

How Canadian technology could protect Space Force troops

Could Canadian technology play a part in the newly announced U.S. Space Force? A team at McMaster University has developed an instrument that could keep Space Force troops safe from radiation.
X-ray vision is not only possible, it already exists – but using computers, not eyes. Marcella Cheng/The Conversation

Curious Kids: Is x-ray vision possible?

Human eyes don't have x-ray vision. But we can use radiography machines to allow our eyes to see inside things the human eye cannot.
X-rays are like light rays, but they can pass through more stuff. Marcella Cheng/The Conversation

Curious Kids: How do x-rays see inside you?

X-rays are like light rays, but they can pass through more stuff. Some of the x-ray's energy is blocked by bone, which is why you can see bones so clearly on x-ray scans.
Pocket your phone without worry. Phone image via www.shutterstock.com.

Why you can’t fry eggs (or testicles) with a cellphone

Did your holiday gift list include radiation-shielding undies to protect your privates from cellphone radio waves? A radiation expert explains they're unnecessary – your phone won't affect your fertility.
bikeriderlondon/Shutterstock.com

Do CT scans really cause cancer?

CT scans deliver a hefty dose of ionising radiation. But the benefits outweigh the risks – most of the time.

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