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If you think X-rays and other forms of radiation have a monopoly on penetrating opaque objects, visible light begs to differ. It actually can pass through things like paint and human tissue, which ...

The system can't pick up transparent or reflective objects as efficiently as opaque objects, said Thomas Weng, a Ph.D. student in robotics.

It’s the dream of spooks and teenagers alike: how to take photographs through opaque objects. That’s always been impossible because light is so badly scattered when it travels through an ...

If you have milk glass but are not sure when it was made, you can try holding the piece up to the sunlight and looking for ...

Human flesh is opaque. As any good dictionary will tell you, that means it has the quality of “not transmitting light; being impenetrable to sight.” Well, forget that: scientists now can use ...

It’s not quite X-ray vision, but a way has been found to transmit simple images through opaque objects using ordinary light – and physicists have used the method to project an image through ...

However, a color camera can see transparent and reflective objects as well as opaque ones. The researchers developed a color camera system that's able to recognize shapes based on color.

After being introduced to the world in 2011, Li-Fi technology generated lots of hype and tons of investment dollars. But it still hasn't caught on. Here's why.

Shadow – A shadow forms when an opaque or non-transparent object blocks light from passing through it and reaching a surface on the other side. Back to top. Activities.

I grew up reading Superman comic books. One of his superpowers was X-ray vision. He could see through opaque objects to detect danger. I was mesmerized by this power. What would you say if I told ...