Operation «Helium»
ru
PG-13
1
...January 1991
Documentary
On the example of the history of the discovery of the "solar substance" Helium, the history of the most important discoveries in the field of physics and chemistry of the early XX century is given.
First Air Date:
1991-01-01
Last Air Date:
1993-01-01
Status:
Ended
Original Country:
Production Countries:
Original Language:
Spoken Languages:
Number of Seasons:
1
Number of Episodes:
5