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Steven Strogatz

As we celebrate Pi Day, mathematician Steven Strogatz talks about how the ancients calculated pi—and how you can do it at home.

mathematician, Steven Strogatz, pi, pi day, irrational number, greek number

Did you know some infinities are bigger than others? Or that one is equal to .99999999999 repeating? Just a few of the math mysteries in *The Joy of X*, a new book by Steven Strogatz.

math, algebra, steven strogatz, stephen strogatz, counting, numbers, infinity

Did you know some infinities are bigger than others? Or that one is equal to .99999999999 repeating? Just a few of the math mysteries in *The Joy of X*, a new book by Steven Strogatz.

mathematics, math, numbers, steven strogatz, the joy of x

What are the odds? How are we connected? And does it all add up? Steven Strogatz, professor of applied mathematics, joins us to run the numbers.

math

Chances are you've heard of the 'small world' idea of six degrees of separation. But is it correct?

small worlds, six degrees, kevin bacon

Train Tech

- The Nuts and Bolts of High-Speed Rail
After years on the slow track, America’s high-speed rail may finally be building...

- Grand Central: An Engine of Scientific Innovation
Standard time zones and electric trains were both pioneered at New York's Grand ...

- Would More Technology Mean Safer Trains?
Seventy thousand miles of track will need to be outfitted with "positive train c...

- Towards Hydrogen Trains
While some clean energy advocates have suggested fuel cell cars as a technology ...

- Hyperloop: Hype or Future Transportation?
Elon Musk described his Hyperloop design as a cross between a "Concorde, a railg...