Horizon
Season 23 Episode 15 - Twice Five Plus the Wings of a Bird
7.4 ?
1964
Documentary
Horizon researches how we acquire mathematical abilities in the first place.
Episodes in Season 23
1
Are You a Racist?
60 min
2
Genesis
60 min
3
Bitter Cold
60 min
4
The Mould, the Myth and the Microbe
60 min
5
Outbreak: The Microbe Masters the Mould
60 min
6
Science...Fiction?
60 min
7
The Children of Eve
60 min
8
The New Face of Leprosy
60 min
9
Hi-Tech à la Française
60 min
10
In the Wake of HMS Sheffield
60 min
11
AIDS: A Strange and Deadly Virus
60 min
12
The Case of the Frozen Addict
60 min
13
Nice Guys Finish First
60 min
14
The Men Who Bottled a Cow
60 min
15
Twice Five Plus the Wings of a Bird
60 min
NOW PLAYING
16
What Makes an Animal Smart?
60 min
17
A Handful of Sugar with a Pinch of Salt
60 min
18
Uranus Encounter
60 min
19
Who Built Stonehenge?
60 min
21
Battered Baby: From Generation to Generation
60 min
22
Battered Baby: Breaking the Chain
60 min
23
Doctors to Be
60 min
