"At the orbit of the earth the average solar wind consists of a strongly ionized gas having a proton and electron density of about 3 - 10 particles per cubic centimeter, with an average flow velocity of approximately 400 km/s."
https://umbra.nascom.nasa.gov/spartan/the_solar_wind.html
"The solar wind is created by the outward expansion of plasma (a collection of charged particles) from the Sun's corona (outermost atmosphere). This plasma is continually heated to the point that the Sun's gravity can't hold it down. It then travels along the Sun's magnetic field lines that extend radially outward. As the Sun rotates (once every 27 days), it winds up its magnetic field lines above its polar regions into a large rotating spiral, creating a constant stream of "wind.""
https://www.jpl.nasa.gov/nmp/st5/SCIENCE/solarwind.html
"The average constant solar wind speed at Earth is around 190 miles (300 km) per second (mps) according to the space weather forecast website SpaceWeatherLive.com."
https://www.space.com/22215-solar-wind.html
"shining ultraviolet light on the surface of a metal. When he did this, he was able to detect electrons being emitted from the surface. This was Einstein's explanation: If the energy in light comes in bundles, then one can think of light as containing tiny lumps, or photons. When these photons strike a metal surface, they act like billiard balls, transferring their energy to electrons, which become dislodged from their "parent" atoms. Once freed, the electrons move along the metal or get ejected from the surface."
https://science.howstuffworks.com/light5.htm
"When exposed to ultraviolet light, these metals mix with the surrounding air and humidity to produce charged clusters"
https://spinoff.nasa.gov/Spinoff2015/cg_7.html
"the cosmic rays and I can now state that I have succeeded in operating a motive device by means of them. I will tell you in the most general way, the cosmic ray ionizes the air, setting free many charges ions and electrons. These charges are captured in a condenser which is made to discharge"
"static electricity obtained from the air and converted it to a usable form."
"the Sun emits small particles, each carrying so small of a charge, that they move with great velocity"
https://www.nuenergy.org/nikola-tesla-radiant-energy-system/
"particles of matter positively electrified, which, impinging upon the upper plate, communicate continuously an electrical charge to the same."
https://www.nuenergy.org/nikola-tesla-radiant-energy-system/
"Copper is a good conductor of electricity because the valence electrons are free and repel each other so strongly that it causes the repulsion of other electrons. This essentially forces the electricity down the piece of copper, or conducts it down the metal."
https://www.reference.com/science/copper-good-conductor-electricity-f129665ca606e57b
"The antenna is basically a polished metal plate"
https://www.investmentwatchblog.com/how-to-use-a-100-year-old-device-to-generate-free-electricity/
"Antennas receive an electromagnetic wave and convert it to an electric signal, or receive an electric signal and radiate it as an electromagnetic wave."
https://www.lesics.com/how-does-an-antenna-work.html