Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

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Expecting a big change or making an effort to transform your life? Keep an eye out for the number sequence 444. Commonly referred to as "angel numbers," certain number series are believed to relay a ...

The problem of tiling rectangles by polyominoes generated large interest. A related one is the problem of tiling parallelograms by twisted polyominoes. Both problems are related with tilings of ...

Why are we asking for donations? Why are we asking for donations? This site is free thanks to our community of supporters. Voluntary donations from readers like you keep our news accessible for ...

Abstract: As the clock frequency increases, signal propagation delays on PCBs are requested to meet the timing specifications with very high accuracy. Generally speaking, the length controllability of ...

How does one pick winning lottery numbers? In mere months of rollovers, the Powerball lottery jackpot has soared into the Top 10 list of largest Powerball prizes in U.S. history at $900 million. Will ...

There have been 6 lottery jackpots that have surpassed $1 billion or more. Four of those drawings were Mega Millions Top 10 largest Mega Millions jackpots range from $533 million to $1.537 billion ...