Many of us would love the superpower to fly, and for good reason: Flight offers a crucial evolutionary advantage. Flying enables an animal to travel large distances quickly, in search of food and new habitats, while expending ...
Plants & Animals
Apr 18, 2024
0
30
Researchers who captured footage of dog attacks on endangered mountain tapirs in Colombia are calling for action to protect threatened wildlife.
Plants & Animals
Apr 17, 2024
0
1
NASA's LRO (Lunar Reconnaissance Orbiter), which has been circling and studying the moon for 15 years, captured several images of Korea Aerospace Research Institute's Danuri lunar orbiter last month. The two spacecraft, traveling ...
Space Exploration
Apr 8, 2024
0
9
Eclipse fever has gripped North America, where many people are talking, worrying—and obsessing—about the April 8 total solar eclipse.
Planetary Sciences
Apr 5, 2024
0
19
As the moon casts its shadow across the Earth during the upcoming solar eclipse, cameras of all kinds will turn skyward. While professional photographers with specialized equipment will aim to capture the perfect shot, others ...
Astronomy
Apr 2, 2024
0
32
This image from the NASA/ESA Hubble Space Telescope shows a globular cluster called NGC 1651. Like another recent globular cluster image, NGC 1651 is about 162,000 light-years away in the largest and brightest of the Milky ...
Astronomy
Mar 29, 2024
0
49
To woo a mate, the Albert's lyrebird of Australia first chooses a stage of entangled vines, then in performance he shakes the vines as part of his courtship footwork, synchronizing each shake with the beat of his striking ...
Plants & Animals
Mar 28, 2024
0
177
This image from the NASA/ESA Hubble Space Telescope shows the gauzy-looking celestial body UGC 5829, an irregular galaxy that lies about 30 million light-years away. Despite the lack of observations of this relatively faint ...
Astronomy
Mar 25, 2024
0
56
An ingenious new camera collar has offered researchers from our Anthropology department an unprecedented glimpse into the secret lives of wild baboons in South Africa.
Plants & Animals
Mar 20, 2024
0
1
One of the largest studies on wildlife activity—involving more than 220 researchers, 163 mammal species and 5,000 camera traps worldwide—reveals that wild animals react differently to humans depending on where the animals ...
Plants & Animals
Mar 18, 2024
0
36
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
