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Radiation in sentence

444 examples of Radiation in a sentence

Earth emits infrared radiation because every object with a temperature above absolute zero will emit light.
This is called thermal radiation.
Earth's infrared radiation would escape to space if there weren't greenhouse gas molecules in our atmophere.
It's widely believed that the evolution of desiccation-tolerant seeds allowed the colonization and the radiation of flowering plants, or angiosperms, onto land.
When we hear the word radiation, it's tempting to picture huge explosions and frightening mutations, but that's not the full story.
Radiation also applies to rainbows and a doctor examining an x-ray.
So what is radiation really, and how much should we worry about its effects?
The answer begins with understanding that the word radiation describes two very different scientific phenomena: electromagnetic radiation and nuclear radiation.
Electromagnetic radiation is pure energy consisting of interacting electrical and magnetic waves oscillating through space.
Modern society is shaped by sending and detecting electromagnetic radiation.
Nuclear radiation, on the other hand, originates in the atomic nucleus, where protons repel each other due to their mutually positive charges.
They will randomly eject matter and/or energy, known as nuclear radiation, to achieve greater stability.
Nuclear radiation comes from natural sources, like radon, a gas which seeps up from the ground.
So if we live in a world of radiation, how can we escape its dangerous effects?
To start, not all radiation is hazardous.
Radiation becomes risky when it rips atoms' electrons away upon impact, a process that can damage DNA.
This is known as ionizing radiation because an atom that has lost or gained electrons is called an ion.
All nuclear radiation is ionizing, while only the highest energy electromagnetic radiation is.
In comparison, cell phones and microwaves operate at the lower end of the spectrum, so there is no risk of ionizing radiation from their use.
The biggest health risk occurs when lots of ionizing radiation hits us in a short time period, also known as an acute exposure.
Fortunately, acute exposures are rare, but we are exposed daily to lower levels of ionizing radiation from both natural and man-made sources.
Your body often repairs damage from small amounts ionizing radiation, and if it can't, the results of damage may not manifest for a decade or more.
One way scientists compare ionizing radiation exposure is a unit called the sievert.
The average person receives 6.2 millisieverts of radiation from all sources annually, around a third due to radon.
If you could absorb all the banana's radiation, you'd need around 170 a day to hit your annual dosage.
We live in a world of radiation.
However, much of that radiation is non-ionizing.
Marie Curie, one of the early radiation pioneers, summed up the challenge as follows: "Nothing in life is to be feared, it is only to be understood.
This one millimeter animal can survive both the hottest and coldest environments on Earth, and can even withstand high levels of radiation.
Beyond dryness, tardigrades can also tolerate other extreme stresses: being frozen, heated up past the boiling point of water, high levels of radiation, and even the vacuum of outer space.
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