Seeing a lot of mobile speed cameras on your summer road trips? Here's how they work
As you're driving around this summer holidays, there's every chance you'll see a strange-looking white or yellow box on the side of the road.
Dec 27, 2023
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As you're driving around this summer holidays, there's every chance you'll see a strange-looking white or yellow box on the side of the road.
Dec 27, 2023
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A new technology developed by engineers at the University of California San Diego has the potential to make the extended reality (XR) experience smoother and more seamless. The technology consists of an asset localization ...
Dec 21, 2023
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Nearly 70% of Iran's gas stations went out of service on Monday following possible sabotage—a reference to cyberattacks, Iranian state TV reported.
Dec 18, 2023
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Sophisticated new analysis of the physical processes which create the sounds of speech could help empower people with speech impairments and create new applications for voice recognition technologies, researchers say.
Dec 14, 2023
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Google has launched Gemini, a new artificial intelligence (AI) system that can seemingly understand and talk intelligently about almost any kind of prompt—pictures, text, speech, music, computer code and much more.
Dec 12, 2023
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Table tennis has been played for decades as a more accessible version of tennis. The sport is particularly beginner-friendly while maintaining a rich level of competitive play. However, like many sports, it remains inaccessible ...
Dec 5, 2023
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Forensic experts in the U.K. are taking new steps to identify criminals caught on CCTV using the shoes they are wearing.
Nov 27, 2023
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Smartphones are a staple of modern life and are changing how we see the world and show it to others. Almost 90% of Aussies own one, and we spend an average of 5.6 hours using them each day. Smartphones are also responsible ...
Nov 27, 2023
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On any given day, Los Angeles police officers record roughly 8,000 interactions with the public on body-worn cameras. Most of the footage goes unseen.
Nov 20, 2023
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Leonardo da Vinci may have been a genius, but he was also a hot mess—at least in terms of organizing his works. When he died in 1519, the Renaissance master left behind 7,000 pages of undated drawings, scientific observations ...
Nov 14, 2023
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A camera is a device that records images, either as a still photograph or as moving images known as videos or movies. The term comes from the camera obscura (Latin for "dark chamber"), an early mechanism of projecting images where an entire room functioned as a real-time imaging system; the modern camera evolved from the camera obscura.
Cameras may work with the light of the visible spectrum or with other portions of the electromagnetic spectrum. A camera generally consists of an enclosed hollow with an opening (aperture) at one end for light to enter, and a recording or viewing surface for capturing the light at the other end. A majority of cameras have a lens positioned in front of the camera's opening to gather the incoming light and focus all or part of the image on the recording surface. The diameter of the aperture is often controlled by a diaphragm mechanism, but some cameras have a fixed-size aperture.
A typical still camera takes one photo each time the user presses the shutter button. A typical movie camera continuously takes 24 film frames per second as long as the user holds down the shutter button.
This text uses material from Wikipedia, licensed under CC BY-SA