3-2-1 Contact - Season 4 Episode 10
Diego and Robin start the day on a ship off the California coast, observing the individual patterns of a lighthouse's beam. They find out how lenses concentrate the rays of light emanating from a lighthouse or a buoy. Robin illustrates the convex lens at the Exploratorium. Also at the Exploratorium, Miguel bounces light with a curved mirror. He goes to the University of Arizona to see the grinding of a glass lens for the telescope at nearby Kitt Peak.MUSIC VIDEO: Light energy from the sun.
First Air Date : 1980-01-14
Last Air date : 1988-11-18
Runtime : 57 minutes
Genre :
Cast :
Crew : Kenneth Fink (Producer), Susan Schwartz Lynn (Producer), Franklin Getchel (Producer), Tish Sommers (Producer), Ozzie Alfonso (Producer), Alfred Hyslop (Executive Producer)
Quality : 
Subtitles :
- Season 4 : Episode 11985-09-23
- Season 4 : Episode 21985-09-24
- Season 4 : Episode 31985-09-25
- Season 4 : Episode 41985-09-26
- Season 4 : Episode 51985-09-27
- Season 4 : Episode 61985-09-30
- Season 4 : Episode 71985-10-01
- Season 4 : Episode 81985-10-02
- Season 4 : Episode 91985-10-03
- Season 4 : Episode 101985-10-04
- Season 4 : Episode 111985-10-07
- Season 4 : Episode 121985-10-08
- Season 4 : Episode 131985-10-09
- Season 4 : Episode 141985-10-10
- Season 4 : Episode 151985-10-11
- Season 4 : Episode 161985-10-14
- Season 4 : Episode 171985-10-15
- Season 4 : Episode 181985-10-16
- Season 4 : Episode 191985-10-17
- Season 4 : Episode 201985-10-18
