Radiation

Cherenkov radiation is electromagnetic radiation generated when subatomic particles pass through matter at a speed faster than the speed of light through that type of matter. It is somewhat analogous to the sonic boom generated when objects pass through air faster than the speed of sound; except Cherenkov radiation is an electromagnetic phenomenon and a sonic boom is a sound phenomenon.

Cherenkov radiation is usually seen as blue light. It is most commonly seen in the water surrounding nuclear reactor cores (see photo above), but can also occur in any transparent material (e.g. air, plastic, glass) when it is exposed to enough high speed subatomic particle radiation.

a micro radiation is what a mobile phone mast gives off and it is bad for human health as it can lead to cancer high blood press sure and brain issues later on in life. when you are near one you don't realise what it is doing to your body.

You would have to wait for 2000 years for the mass to decrease to 50 grams (one half-life) and another 2000 years to decrease to 25 grams (two half-lives). So, in total, you would have to wait 4000 years for the mass to decrease to 25 grams.

Yes, the heat you feel from a fireplace is primarily in the form of radiation. As the fire heats up, it emits infrared radiation that warms objects and people in its vicinity. This is why you can feel the warmth even if you are not directly in front of the fire.

The energy of a photon can be calculated using the equation E = hc/λ, where h is Planck's constant (6.626 x 10^-34 J s), c is the speed of light (3.00 x 10^8 m/s), and λ is the wavelength in meters. Converting the given wavelength of 92.323 nm to meters (92.323 x 10^-9 m) and plugging the values into the equation, the energy of the photon can be calculated as E = (6.626 x 10^-34 J s * 3.00 x 10^8 m/s) / (92.323 x 10^-9 m).

A radiation emitter device includes any point source that emits radiation without actively dispensing radioactive material across an area. Examples include X-ray machines, CT scanners, and certain types of radiation therapy machines.

Non-ionizing radiation, such as visible light and radio waves, are generally considered safe and have low energy levels that do not cause harm to humans. Ionizing radiation, such as X-rays and gamma rays, can be harmful in high doses and have enough energy to remove electrons from atoms, potentially causing damage to cells and DNA. It is important to limit exposure to ionizing radiation to protect against potential health risks.

Neutrinos are neutral radiation particles. They are subatomic particles with no electric charge, making them electrically neutral. Neutrinos are produced in various nuclear reactions, such as those in the sun and in nuclear reactors.

The kinetic energy of heat is converted into radiation (mostly infra-red)

[thus the original object cools]

and IF the radiation strikes some body, then the second body will warm up.

No, radiation does not rise. Radiation can travel in all directions from its source, with its behavior dependent on the type of radiation and the surrounding environment.

The neutron radiation can turn stable elements in your body to radioactive isotopes (called neutron activation). This makes you radioactive in a way that cannot be removed by any attempt at decontamination. No other type of radiation can do this.

A 'ray' is a term for a radiation. All objects with temperatures above 0 degrees Kelvin give off radiation called, "Heat".

A person can get radiation poisoning from exposure to high levels of ionizing radiation, such as through a nuclear accident, industrial mishap, or intentional exposure. This can damage the cells and tissues in the body, leading to a range of symptoms and potential long-term health effects. Prompt medical treatment is crucial in cases of radiation poisoning.

Dosimeter badges typically do not detect exposure to alpha particles because alpha particles cannot penetrate the outer layers of the badge to reach the dosimeter inside. Alpha particles are stopped by even a thin piece of clothing or the dead layer of skin, so they are not typically captured by external dosimeters worn by radiation workers. Specialized internal dosimeters may be used to monitor alpha particle exposure if it is a concern in a particular workplace setting.

Radiation threshold is the minimum level of radiation exposure that can cause detectable effects in an organism. It is the point at which the effects of radiation, such as DNA damage or cellular harm, start to become noticeable. Exceeding the radiation threshold can lead to increased risks of health issues such as cancer and genetic mutations.

In internal radiation therapy a source of radioactivity is surgically placed inside the body near the cancer

Direct radiation refers to solar energy that reaches the Earth's surface without being diffused or scattered by clouds, gases, or particles in the atmosphere. This type of radiation is responsible for warming the Earth and is a primary source of renewable energy for generating electricity through solar panels.

Mechanical radiation refers to the transmission of mechanical vibrations or waves through a medium, such as sound waves traveling through air or seismic waves traveling through the Earth. It is distinct from electromagnetic radiation, which does not require a medium for propagation.

Radiation is energy that moves through space. It can take the form of particles or electromagnetic waves, such as x-rays, gamma rays, or light. Radiation can be natural (from the sun or Earth) or man-made (such as from nuclear reactions).

Yes, alpha radiation is a form of ionizing radiation. It consists of alpha particles, which are helium nuclei composed of two protons and two neutrons. These particles have high energy and can ionize atoms by knocking off electrons from them as they pass through matter.

Braking radiation is a type of electromagnetic radiation emitted when a charged particle (such as an electron) slows down or changes direction due to interacting with a nearby atom or nucleus. This sudden deceleration causes the particle to emit photons as it loses energy. Braking radiation can be seen in X-ray production when high-speed electrons are slowed down in the target material.

A radiation pyrometer is a device that measures the temperature of an object by detecting the amount of thermal radiation it emits. It does not require direct contact with the object being measured, making it suitable for high-temperature environments or moving objects. Radiation pyrometers are commonly used in industrial applications such as metalworking, glass manufacturing, and power plants.

Land breeze is predominantly driven by conduction. During the night, the land cools more quickly than the water, causing the air near the land to cool and flow towards the warmer water to create the land breeze phenomenon. Radiation also plays a role in cooling the land surface which initiates the conduction process.

Yes, an oven emits radiant heat to cook food. It does not use ionizing radiation, like X-rays or gamma rays, which can be harmful to humans. However, it's important to follow safety guidelines and not put objects that are not meant for cooking, such as metal, in the microwave, as they can cause sparking.