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Video: Aurora Borealis and meteor shower appear simultaneously
The combination of the aurora borealis and the Perseid meteor shower is a rare and spectacular event that leaves many sky enthusiasts in awe.
Optical
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Articles about Optical
351 published items.
Space science
Scientists discover twisted crystals that use 'pseudo-gravity' to bend light like black holes
Photonic crystals are optical nanostructures that affect the propagation of photons within them in a similar way to the way semiconductor crystals affect the motion of e…
Space science
New giant galaxy discovered hidden in the 'blind zone' of the Milky Way
Astronomers have just found a
Animal world
Reindeer can change eye color to 'match' the long winter months
According to scientists, reindeer
Discover science
Lasers discovered to block light, creating darkness
Strange optical effect found could change science's concept of darkness.
1001 mystery
Mysterious light pillar hovers over Jeju Island
South Korea- A series of light pillars hanging in the air for more than an hour on Jeju Island is the result of a rare optical phenomenon.
New technology
Above all, watch 3D right on regular eyeglasses
Building on current holographic technology, a team of optical display experts has invented a way to improve 3D displays small enough to work in regular eyeglasses.
Discover science
Does the reflection between two mirrors facing each other last indefinitely?
The Infinity Mirror effect occurs when two mirrors are placed opposite each other, in which the object's image is reflected many times, creating the illusion of countles…
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Discover the ghostly green lightning phenomenon
Green lightning is a natural optical phenomenon that occurs after sunset or before dawn. However, because of its ghostly blue light, many people confuse it with mysterio…
Environment
A beautiful halo appears in the sky of Dong Nai
At noon on May 20, people in some areas in Dong Nai admired the phenomenon of brilliant halos appearing in the sky.
Environment
'Mysterious light column' in the sky of Hanoi has appeared in many places, what phenomenon is this?
At dawn on May 19, a strange light column appeared in the sky of Hanoi. Images of such light column(s) have also been recorded in many places around the world, so how is…
Environment
Halos around the Sun appear in many localities in Vietnam
This afternoon, May 21, in Hanoi, Quang Ninh and some other localities, solar halos are simultaneously appearing.
Environment
Sun halos appearing in some provinces: Can signal prolonged heat
At noon on May 21, many localities in the Northern region such as Quang Ninh, Hai Phong, Hanoi, Hai Duong,... many people discovered a bright circle surrounding the Sun.
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Atomic clocks are off by just one second every nearly 40 billion years
The new atomic lattice clock broke the record for accuracy by missing just one second after 39.15 billion years.