Many technologies have been developed to make use of solar radiation.
Both of these changes bring more solar radiation to the Arctic during this period.
"I have a very strong feeling that probably solar radiation is increasing during the last 14 years," he said.
This is thought to be the result of solar radiation approximately 20% lower than today.
In order not to crash, he had to get every degree of energy possible from solar radiation.
This is thought to be an adaptation against solar radiation.
The heating may be a result of solar radiation or fire.
Since solar radiation is not always available, it becomes necessary to store the energy in some form.
In hot conditions, the greatest source of heat energy is solar radiation.
It was the first time she had felt natural solar radiation in more than fifty years.