Recent content by Vagulus

So! It's all in the head! We have had evolutionary, creationary, theological, and philosophical responses. This obviously has nothing to do with physics! Merry Christmas Everyone :kiss::eek:o_O

There may well be something in this A.T. I am thinking that the explanation might not involve directional force so much but instead be related to the gumnut moving to an area where it has greater freedom of movement, i.e. the gap between the instep and the thong which is greater than the gap...

That's why I am asking, We know the gumnut has Mass, and we know it moves. This must require a force (as far as I can work out). What is the force?

Whether it be evolutionary or creationary (in the 19th century, William Cowper wrote, "God moves in a mysterious ways; His wonders to perform ..." ) we must acknowledge the advantage to the species of tree in having its seeds spread far and wide. That, however, is a side issue. This moot is...

Here is an issue to distract the scientific mind for a restful Festive Season. This is a gumnut. They fall from trees round here (Perth, Western Australia) by the tonne. They are quite small (about 9 mm in diameter) and the pointy end is sharp. You do not want to stand on the pointy end...

Certainly, Engineering is holistic. In this case, the application is almost exactly what the first post said - an average bloke pulling on a lever :smile: I wholeheartedly agree. Safety is priority. :bow: It is a delight to me that people in this forum take the holistic view rather than...

Thanks, folks. berkeman hit the nail on the head. Using a torque wrench is almost exactly the situation I have in mind for this problem. Thanks again to all for your prompt response.

Hi folks I just signed up. I spent most of my life in Engineering despite being something of a Mathematical Dyslexic. Now retired, I keep creeping rust at bay by designing things (inventing, if you will). This often involves maths, so don't be surprised if I ask a lot of what seem to be dumb...

Is there a generally accepted ball-park figure for the force a human can apply to a lever? Obviously, I am not thinking of an Olympic weight-lifter or of my three-year-old granddaughter - just the turning moment generated by the 'average' person standing up and pulling/pushing on an horizontal...