|
Fact |
Category |
Date |
|
151 |
The Hückel method was first proposed by Erich Hückel. |
Science > Physics |
05/30/08 |
|
152 |
The halogens are in group 17. |
Science > Chemistry |
06/16/08 |
|
153 |
The Fujita Scale goes up to an F-6. |
Science |
09/01/08 |
|
154 |
The first rover to successfully land on Mars was Sojourner, which landed July 4, 1997. |
Science > Astronomy |
11/05/08 |
|
155 |
The first electric battery was the voltaic pile, invented by Alessandro Volta in 1800. |
Science > Physics |
02/04/09 |
|
156 |
The closest star to Earth, besides the Sun, is Proxima Centauri. |
Science > Astronomy |
06/29/08 |
|
157 |
The chemical symbol for sulphur is S. |
Science > Chemistry |
06/03/08 |
|
158 |
The center of the Andromeda Galaxy is a supermassive black hole. |
Science > Astronomy |
12/01/10 |
|
159 |
The brightest star in the night sky is Sirius. |
Science > Astronomy |
11/01/08 |
|
160 |
The bee hummingbird is the world's smallest bird. |
Science |
06/10/08 |
|
161 |
The base of the vigesimal is 20. |
Science > Math |
08/06/08 |
|
162 |
The base of the quinary system is 5. |
Science > Math |
08/14/08 |
|
163 |
The base of the duodecimal system is 12. |
Science > Math |
01/31/09 |
|
164 |
The base of the decimal system is ten. |
Science > Math |
08/08/08 |
|
165 |
The base of the binary system is 2. |
Science > Math |
08/12/08 |
|
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