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Pythagoras' Theorem

Pythagoras was a Greek philosopher who discovered that in a right angled triangle (triangle with one angle 90 degrees) the hypotenuse squared , c2, ...

KC
Answered by Katie C. Maths tutor
6090 Views

Probability: "Sock Drawer" style questions.

Here is a genuine probability question I once tackled:

“In your sock drawer there are 6 blue socks, 2 red socks and 2 white socks, distributed so that the probability of ...

WH
Answered by William H. Maths tutor
77689 Views

Sexual Reproduction: How does a sperm and egg form a baby?

Once a month, following ripening, a single egg is released from a woman's ovaries during the menstrual cycle, with the hope of fertilisation. During the act of sexual reproduction, the father's sperm i...

PV
Answered by Phoebe V. Biology tutor
16933 Views

How can an object accelerate without changing speed?

Acceleration is defined as the rate of change of velocity. Since velocity is a vector quantity (it has both magnitude and direction) defined as speed in a particular direction, any change in either spe...

EP
Answered by Ellen P. Physics tutor
85696 Views

What is the difference between a gene and an allele?

A gene is a section of DNA or RNA that codes for a protein. Alleles are different versions of the gene.  For example, if a gene coding for a particular enzyme mutated, then there would be two alleles o...

EP
Answered by Ellen P. Biology tutor
7529 Views

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