Cardiopulmonary resuscitation (CPR): First aid
Cardiopulmonary resuscitation (CPR) is an emergency treatment that''s done when someone''s breathing or heartbeat has stopped. For example, when someone has sudden cardiac
Space-Based Solar Power
Since clouds, atmosphere and nighttime are absent in space, satellite-based solar panels would be able to capture and transmit substantially more energy than terrestrial solar panels.
Space-Based Solar Power
An SBSP system collects solar energy in space, converts that to microwave or optical laser energy, and transmits that energy to the Earth. A ground station receives the energy, converts it to electricity, and
Solar Panels and Space-Based Power Plants
However, most spacecraft in low Earth orbit or operating within the inner Solar System are powered by converting the Sun''s thermal energy into
Osteopathic medicine: What kind of doctor is a D.O.?
You know what M.D. means, but what does D.O. mean? What''s different and what''s alike between these two kinds of health care providers?
Acute sinusitis: Do over-the-counter treatments help?
Medicine you can get without a prescription may give some relief from acute sinusitis symptoms.
How Do Space Solar Cells Work and Why Are They Important?
Unlike terrestrial solar panels, space solar cells are optimized to capture and convert solar energy in a vacuum, free from atmospheric interference. This makes them essential for uninterrupted, long-term
Automated external defibrillators: Do you need an AED?
An automated external defibrillator (AED) is a portable device that can be used to treat a person whose heart has suddenly stopped working. This condition is called sudden cardiac arrest.
How Are Satellites Powered?
Satellites are powered primarily by solar panels that convert sunlight into electricity, although some specialized missions rely on radioisotope thermoelectric generators (RTGs) for power
Triglycerides: Why do they matter?
Why do high triglycerides matter? High triglycerides may contribute to hardening of the arteries or thickening of the artery walls, called arteriosclerosis. This condition increases the risk of
Generating electricity in space to power our future
SBSP works by capturing solar energy in space using satellites equipped with large solar panels. The generated electricity is converted into high
How outer space can be the solution to cheap power
The technology now exists to create power stations in space by sending up lightweight PV panels that open up, collect solar energy, and
Exercise: How much do I need every day?
You can do strength training by using weight machines or weights, your own body weight, heavy bags or resistance bands. You also can use resistance paddles in the water or do activities
A solar power station in space? Here''s how it would
These panels generate electricity, which is then wirelessly transmitted to Earth through high-frequency radio waves. A ground antenna,
How well do face masks protect against COVID-19?
Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and how to use them.
The Future of Energy: Unlocking the Potential of Space
To optimize energy output per unit mass, these space-grade PV cells are made to withstand challenging circumstances of space, including extreme
Hand-washing: Do''s and don''ts
Hand-washing: Do''s and don''ts Hand-washing is an easy way to prevent infection. Know when and how to wash your hands, and how to get children into the hand-washing habit.
Ileostomy
Can I swim? How do I shower? Do I need to buy different clothes? How will it affect my intimate life? Once you adjust, you''ll likely find that it''s possible to do many of the same activities you
Arthritis pain: Do''s and don''ts
Arthritis is a leading cause of pain and limited mobility worldwide. There''s plenty of advice on managing arthritis and similar conditions with exercise, medicines and stress management. But