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He acknowledged it didn’t take a rocket scientist or whatever it is they do at MIT to come up with the design.

Despite her own background as a physicist, Ms Seward thinks people are put off this sector by a perception that it's exclusively for rocket scientists.

“It doesn’t take a rocket scientist to know,” James said when asked about the potential impact.

Math enthusiasts around the world, from college kids to rocket scientists, celebrate Pi Day on Thursday, which is March 14 or 3/14 — the first three digits of an infinite number with many practical uses.

In a 999 call which was played to the jury, Mr Williams said: "He obviously knew I was gay, it doesn't take a rocket scientist."