Word Problems - College Algebra

A person’s body mass index (BMI) b varies directly to a person’s weight in pounds and inversely with the square person’s height h in inches. If a 6 foot tall person’s BMI is 32 and their weight is... more


What are good resources for someone looking to become an amateur astronomer?

What resources would you consider to be essential for an amateur astronomer?

How is it possible for astronomers to see something 13B light years away?

In a NPR News story from a few years back:> "A gamma-ray burst from about 13> billion light years away has become> the most distant object in the known> universe."I'm a layman when it... more

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