Search Result For signal
The day a signal came from space – level 1
15-08-1977It is August 15, 1977. An American astronomer looks at the...
The day a signal came from space – level 2
15-08-1977On August 15, 1977, American astronomer Jerry Ehman looked at the...
The day a signal came from space – level 3
15-08-1977On August 15, 1977, American astronomer Jerry Ehman carried out an...
The day of the Great Train Robbery – level 2
08-08-1963On August 8, 1963, a train went from Glasgow to London,...
The day of the Great Train Robbery – level 3
08-08-1963On August 8, 1963, a train went from Glasgow to London,...
The day GPS was fully operational – level 1
17-07-1995GPS is a system which gives information about your location on...
The day GPS was fully operational – level 2
17-07-1995The Global Positioning System (GPS) is a satellite system which gives...
The day GPS was fully operational – level 3
17-07-1995The Global Positioning System (GPS) is a satellite system that provides...
The day the inventor of Morse Code was born – level 1
27-04-1791Samuel Morse is born on April 27, 1791, in Massachusetts. He...
The day the inventor of Morse Code was born – level 2
27-04-1791Samuel Morse was born on April 27, 1791, in Massachusetts, which...
