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Health threats from cosmic rays are the dangers posed by cosmic rays to astronauts on interplanetary missions or any missions that venture through the Van-Allen Belts or outside the Earth's magnetosphere. [ 1][ 2] They are one of the greatest barriers standing in the way of plans for interplanetary travel by crewed spacecraft, [ 3][ 4][ 5] but ...
The field strength of electromagnetic radiation is measured in volts per meter (V/m). [ 2]: 139. The most common health hazard of radiation is sunburn, which causes between approximately 100,000 and 1 million new skin cancers annually in the United States. [ 3][ 4] In 2011, the World Health Organization (WHO) and the International Agency for ...
Mokey Fraggle (performed by Kathryn Mullen in the original series, Donna Kimball in Fraggle Rock: Rock On! and Fraggle Rock: Back to the Rock, voiced by Mona Marshall in the animated series) is a highly spiritual and artistic hippie-type Fraggle who usually remains quiet and contemplative, though even she can get annoyed from time to time.
The 2024 solar eclipse has finally arrived! This afternoon, millions will have their eyes on the sky to witness the celestial event. Many locations giving away or selling solar eclipse glasses are ...
The effects of spaceflight on the human body are complex and largely harmful over both short and long term. [ 1] Significant adverse effects of long-term weightlessness include muscle atrophy and deterioration of the skeleton ( spaceflight osteopenia ). [ 2] Other significant effects include a slowing of cardiovascular system functions ...
One concluded that deaf drivers were safer than hearing drivers, one concluded that deaf and hearing female drivers performed similarly but deaf male drivers crashed more frequently, and the other ...
Color blindness or color vision deficiency ( CVD) is the decreased ability to see color or differences in color. [ 2] The severity of color blindness ranges from mostly unnoticeable to full absence of color perception. Color blindness is usually an inherited problem or variation in the functionality of one or more of the three classes of cone ...
But some people don't want them, and if you're one of those people, we'll give you the bad news first: "Most people will benefit from glasses at some point in their life," says Dr. Michelle Holmes ...