Top 5 KGB operations on U.S. soil

Russia's famed intelligence agency was often successful in getting American secrets.

KGB logo and NYC in 1970. Credit: Getty Images
  • The KGB recruited spies and carried out numerous operations in the United States.
  • The spies compromised U.S. intelligence and military.
  • Some practices of the KGB continue in modern intelligence.
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5 favorite books of Albert Einstein

Some books had a profound influence on Einstein's thinking and theories.

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  • Einstein had a large library and was a voracious reader.
  • The famous physicist admitted that some books influenced his thinking.
  • The books he preferred were mostly philosophical and scientific in nature.
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200 cognitive biases rule our everyday thinking

Almost 200 cognitive biases rule our everyday thinking. A new codex boils them down to 4.

  • Nearly 200 cognitive biases affect our decision-making.
  • The sheer amount of biases should teach us humility.
  • And we should recognize the essential role they play in life, as well.
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Are cats jerks? Or are YOU the jerk?

A new study from Oregon State University makes it clear: it's you.

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  • Researchers discovered that the more attention you give a cat, the more likely they are to return it.
  • Cats are territorial; being in their home environment greatly affects their attitude.
  • The common wisdom that cats are aloof is provably false.
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Think you’re bad at math? You may suffer from ‘math trauma’

Even some teachers suffer from anxiety about math.

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I teach people how to teach math, and I've been working in this field for 30 years. Across those decades, I've met many people who suffer from varying degrees of math trauma – a form of debilitating mental shutdown when it comes to doing mathematics.

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