Author Archives: The Physicist

Q: What would happen if there was a giant straw connecting the Earth’s atmosphere right above the ground to space?

Physicist: About the same thing that happens to a straw in a glass of water: the water level in the straw evens out with the water level outside. A tube from the ground to space would fill with air of … Continue reading

Posted in -- By the Physicist, Physics | 1 Comment

Q: Can a human being survive in the fourth dimension?

Physicist: Nopers.  But to understand why, it’s important to know what a dimension is. When someone says “we live in the third dimension” what they should really say (to be overly-precise) is “the universe we inhabit has three spacial dimensions”.  … Continue reading

Posted in -- By the Physicist, Math, Paranoia, Physics | 16 Comments

Q: Why radians?

Physicist: Because calculus. When you first start doing trigonometry the choice between radians, degrees, turns, or hexacontades is a matter of personal preference.  Most people use degrees because most other people use degrees (and other people seem pretty on the … Continue reading

Posted in -- By the Physicist, Conventions, Geometry, Math | 2 Comments

Q: If the Sun pulls things directly toward it, then why does everything move in circles around it?

Physicist: Newton’s laws of motion say: Where MP and AP are the mass and acceleration of a planet, MS is the mass of the Sun, R is the distance between them, and G is a universal constant.  What this rather … Continue reading

Posted in -- By the Physicist, Astronomy, Evolution, Physics | 5 Comments

Q: Why is the area of a circle equal to πR2?

Physicist: To demonstrate this you typically have to use either calculus or oranges.  They both use more or less the same ideas, they’re just applied in different ways. Oranges: Imagine taking an orange wedge and opening it so that the … Continue reading

Posted in -- By the Physicist, Geometry, Math | 3 Comments

0.999… revisited

The original question was: 0.999… = 1 does not make sense with respect to my conception of the number line, I do not know much about number classes but for the number line from lets say 0 to 1 there … Continue reading

Posted in -- By the Physicist, Math, Philosophical | 31 Comments