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 Phoenix Lights – level 1
13-03-1997It is March 13, 1997, in the evening. People see big...
The day of the Phoenix Lights – level 2
13-03-1997On March 13, 1997, in the evening, people started to see...
The day of the Phoenix Lights – level 3
13-03-1997On the evening of March 13, 1997, strange big lights began...
The day the first public TV started – level 1
02-11-1936It is 1936. The BBC needs a company who can send...
The day the first public TV started – level 2
02-11-1936It is 1936 and there is a big competition in Britain....
The day the first public TV started – level 3
02-11-1936It is 1936 and a big competition is culminating in Britain....
The day the first satellite was launched – level 2
04-10-1957Sputnik was one of the most famous objects which people made....
