In obtaining the radar horizon equations, it is common practice to assume a value for the Earth's radius that is 4/3 times the actual radius. This is done to account for the effect of the atmosphere on radar propagation. For a true line of sight, such as used for optical search and ...
As long ago as the 1970s, TI, among other companies, introduced a handheld calculator powered by a small solar panel, and some of those first credit card-sized systems are still around, helping people figure tips and total their grocery bills. In the throw-away world of consumer electronics...
As long ago as the 1970s, TI, among other companies, introduced a handheld calculator powered by a small solar panel, and some of those first credit card-sized systems are still around, helping people figure tips and total their grocery bills. In the throw-away world of consumer electronics...