Who first discovered UV light?
On 22 February 1801, Johann Wilhelm Ritter discovered UV radiation in Jena. In general, this achievement is less well known than his work on galvanism. Ritter was the creator of modern electrochemistry.
When were UV flashlights invented?
Inventor. William H. Byler is credited with inventing the black light in 1935, and according to the University of Central Missouri, Byler graduated there in 1927 with a major in chemistry and physics.
Where does UV light come from?
Ultraviolet (UV) radiation is a form of electromagnetic radiation that comes from the sun and man-made sources like tanning beds and welding torches.
What are 4 types of radiation from the sun?
Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays.
What is the most dangerous type of radiation?
Gamma rays
What is the least dangerous radiation?
alpha particles
Which is the most powerful radiation?
gamma-rays
Are gamma rays faster than light?
Although the energy inherent to light is quantized into discrete energy packets (a.k.a., photons), there are some properties shared by all forms of light. Light of any wavelength, from picometer-wavelength gamma-rays to radio waves more than a trillion times longer, all move at the speed of light in a vacuum.
Is there any particle faster than light?
A tachyon (/ˈtækiɒn/) or tachyonic particle is a hypothetical particle that always travels faster than light. Most physicists believe that faster-than-light particles cannot exist because they are not consistent with the known laws of physics.
Does radiation travel faster than light?
If a particle moves faster than the speed of light, it must create a shockwave, and radiate energy. So, to wrap everything up, let me restate: Nothing can travel faster than the speed of light in vacuum. It is possible to travel faster than light in a material, and if you do, you will emit Cerenkov radiation.
Why we Cannot go faster than light?
Hence, an object moving at the speed of light through space experiences no time at all or in other words is frozen in time. So, the real reason why we can’t move faster than the speed of light is that once we’re moving entirely through space, there’s no more speed to be gained.