55 the spacecraft was struck by a bolt of lighting. "Lightning is an atmospheric discharge of electricity, which typically occurs during thunderstorms, and sometimes during volcanic eruptions or dust storms. The leader of a bolt of lightning can travel at speeds of 60,000 ms, and can reach temperatures approaching 30,000 CF, hot enough to fuse soil or sand into glass channels. There are over 16 million lightning storms every year" -- Reference Wikipedia.org back to 55) 56 electronic wavelength. "In physics, wavelength is the distance between repeating units of a propagating wave of a given frequency. It is commonly designated by the Greek letter lambda (λ). Examples of wavelike phenomena are light, water waves, and sound waves. Ina wave, a property varies with the position. For example, this property can be the air pressure fora sound wave, or the magnitude of the electric or the magnetic field for light. The wavelengths of frequencies audible to the human ear (20 Hz kHz) are between approximately 17 m and 17 mm, respectively. Visible light ranges from deep red, roughly 700 nm to violet, roughly 400 nm (430–750 THz). For other examples, see electromagnetic spectrum." -- Reference Wikipedia.org back to 56)
