PROF. CARSLAW'S excellent book is so well known that it needs little general introduction. The first edition, published in 1906, was a work on “Fourier's Series and Integrals and the Mathematical ...

Observation skill is the ability in which an observer can observe and interpret the details that surround them about people’s behaviour, patterns, changes, or small cues that others usually ignore. It ...

Today’s challenging puzzle is to find the letter “O” among the “D” sequence series. So, if you think you're a genius with an 140+ IQ level, then find the number “O” in the sequence of “D” sequence ...