Thank you for your reply. You're right that most times we talk about and use these technologies without mention of the inventors who worked so hard to invent them in the first place. However, because the problems facing humanity at every stage in human evolution are often the same all over the world, scientists and forward thinkers, grapple with these problems from their own corners.

Incidentally, more than one persons may end up discovering one thing or inventing one machine. However, it is only those who document and popularise their own scientists that are recognised as the originators. So I thank you for making it known that the Muslim world did much in the area of inventing machineries and engines.

It is always a pleasure to have you here.