
Fact 
Category 
Date 

1 
A cosmic year, or a galactic year, is the time it takes for the Sun to revolve around the center of the Milky Way. 
Science > Astronomy 
04/04/10 

2 
A frogs ulna and radius are fused together, and the tibia and fibula are fused together. 
Science > Biology 
04/19/14 

3 
A googol contains a 1 followed by 100 zeros. 
Science > Math 
05/31/08 

4 
A Klein bottle is a nonorientable surface with no distinct "inner" and "outer" sides. 
Science > Math 
11/16/08 

5 
A mammal that lays eggs is called a monotreme. 
Science > Biology 
06/04/08 

6 
A number is a triangular number if the sum of one and the product of eight and the number is an odd square number. 
Science > Math 
01/10/17 

7 
A prime number is a number (other than the number 1) that has no numbers that divide evenly into itself besides itself and one. 
Science > Math 
09/25/08 

8 
A surface with only one side and one edge is known as a Möbius strip. 
Science > Math 
06/15/08 

9 
A/An equilateral triangle is one in which all three sides are of an equal length. 
Science > Math 
06/11/08 

10 
A/An isosceles triangle has exactly two sides that are equal in length. 
Science > Math 
06/05/08 

11 
A/An scalene triangle has no sides that are the same length. 
Science > Math 
06/06/08 

12 
Aage Niels Bohr won the Nobel Prize in Physics in 1975. 
Science > Physics 
07/09/09 

13 
Abdus Salam won the Nobel Prize in Physics in 1979. 
Science > Physics 
07/09/09 

14 
Abel Wolman won the National Medal of Science in 1974. 
Science 
08/11/09 

15 
Ac is the symbol for the chemical element actinium. 
Science > Chemistry 
06/09/08 

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