Search found 165 matches

by geoffbarnett
Sat Jan 16, 2021 12:22 pm
Forum: Projects
Topic: lockdown 2020/2021 project
Replies: 29
Views: 836

Re: lockdown 2020/2021 project

Newton's third law and posting emails after a few drinks.
by geoffbarnett
Fri Jan 15, 2021 11:31 pm
Forum: Projects
Topic: lockdown 2020/2021 project
Replies: 29
Views: 836

Re: lockdown 2020/2021 project

Agreed. But first and foremost a rotary motion.
by geoffbarnett
Fri Jan 15, 2021 8:57 pm
Forum: Projects
Topic: lockdown 2020/2021 project
Replies: 29
Views: 836

Re: lockdown 2020/2021 project

I don't thimk we are talking about releasing centipetal or centrifugal forces here. The caliper is fixed to the fork, it will, when the front brake is applied try to move the fork (equal and opposite) around the direction of rotaion of the disc - a rotary motion. Not up and down.

The Earth is flat.
by geoffbarnett
Fri Jan 15, 2021 7:29 pm
Forum: Projects
Topic: lockdown 2020/2021 project
Replies: 29
Views: 836

Re: lockdown 2020/2021 project

A CSE in General Science will only take me so far in life (so apologies if I am miles off course here). Brakes change kinetic energy to heat energy. When applying the front brake, the forks being attached to the head yoke, stop the whole forks rotating forward about the front wheel axle. This is lik...
by geoffbarnett
Fri Jan 15, 2021 1:41 pm
Forum: Projects
Topic: lockdown 2020/2021 project
Replies: 29
Views: 836

Re: lockdown 2020/2021 project

Correction - opposite to the direction of the disc - but still, not up and down.
by geoffbarnett
Fri Jan 15, 2021 1:38 pm
Forum: Projects
Topic: lockdown 2020/2021 project
Replies: 29
Views: 836

Re: lockdown 2020/2021 project

As I understand it, according to Newton's third law (equal and opposite reaction), applying the brake wiil attempt to move the caliper in the direction of rotation of the disc...not up and down.
by geoffbarnett
Mon Jan 04, 2021 9:36 am
Forum: Off Topic
Topic: poetry corner...further down that road
Replies: 1
Views: 110

poetry corner...further down that road

One day, through the primeval wood, A calf walked home, as good calves should; But made a trail all bent askew, A crooked trail as all calves do. Since then three hundred years have fled, And, I infer, the calf is dead. But still he left behind his trail, And thereby hangs my moral tale. The trail w...
by geoffbarnett
Thu Dec 31, 2020 7:32 am
Forum: Off Topic
Topic: poetry corner...a New Year
Replies: 0
Views: 53

poetry corner...a New Year

Two roads diverged in a yellow wood, And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth; Then took the other, as just as fair, And having perhaps the better claim, Because it was grassy and wanted wear; Though...
by geoffbarnett
Mon Dec 21, 2020 2:10 pm
Forum: Off Topic
Topic: poetry corner (2)
Replies: 5
Views: 136

Re: poetry corner (2)

No I'm not. More of a pagan really (reverence for nature).
by geoffbarnett
Mon Dec 21, 2020 12:39 pm
Forum: Off Topic
Topic: poetry corner (2)
Replies: 5
Views: 136

poetry corner (2)

Solstice Wood There is a spinney on the ridge and I am certain that it was always there. When the winter solstice comes and a red sphere falls behind trees, I like to think I am not entirely alone but that other eyes across time are with me, and show the same pleasure that this is the shortest day, ...