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Search: Posts Made By: Fredo76
Showing results 1 to 14 of 14
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Forum: General Cycling Discussion
02-18-23, 11:52 AM
Replies: 341
Views: 10,521
Posted By Fredo76

The work required must lie in the simplifying...

The work required must lie in the simplifying assumptions, then. They are too simple.

The snider you get with your "Because..PHYSICS!!" argument, the lower my opinion of you becomes.
Forum: General Cycling Discussion
02-18-23, 10:19 AM
Replies: 341
Views: 10,521
Posted By Fredo76

It helps remind people that their feelings...

It helps remind people that their feelings actually count, and that there is more work to do on the 'model'.

https://www.youtube.com/watch?v=m3dZl3yfGpc
Forum: General Cycling Discussion
02-18-23, 10:15 AM
Replies: 341
Views: 10,521
Posted By Fredo76

They had bicycles in ancient Greece?

They had bicycles in ancient Greece?
Forum: General Cycling Discussion
02-15-23, 09:44 PM
Replies: 341
Views: 10,521
Posted By Fredo76

I am home, and I'll post as I please, thank you....

I am home, and I'll post as I please, thank you. :)
Forum: General Cycling Discussion
02-15-23, 09:41 PM
Replies: 341
Views: 10,521
Posted By Fredo76

Thank you for offering plausible alternative...

Thank you for offering plausible alternative explanations for my perceptions. It is helping. :)
Forum: General Cycling Discussion
02-15-23, 12:59 PM
Replies: 341
Views: 10,521
Posted By Fredo76

All those ancient idiots

The old saying "An ounce off the wheels is worth a pound off the frame" or its variant "A pound off the wheels is worth ten off the frame" go way back, to the '70s by my personal knowledge, and...
Forum: General Cycling Discussion
02-14-23, 05:32 PM
Replies: 341
Views: 10,521
Posted By Fredo76

Is my statement just preceding incorrect or...

Is my statement just preceding incorrect or worded wrong? I thought 2x during acceleration was right in the model. I thought that right there was the 'basic physics' involved WRT rotating weight at...
Forum: General Cycling Discussion
02-14-23, 11:14 AM
Replies: 341
Views: 10,521
Posted By Fredo76

I agree 100%. And don't forget the...

I agree 100%. And don't forget the micro-accelerations required to stay with someone going faster. In racing, that happens a lot. :)
Again with the physics! Our argument is not with the physics, but...
Forum: General Cycling Discussion
02-12-23, 12:50 PM
Replies: 341
Views: 10,521
Posted By Fredo76

apologies

My post does read that way, doesn't it? I did not mean to malign the modelers themselves and I apologize. What I am objecting to is misuse of their model.

Yes, but the simplifying assumption lies...
Forum: General Cycling Discussion
02-11-23, 07:37 PM
Replies: 341
Views: 10,521
Posted By Fredo76

Boy, they really don't want anyone to cut and...

Boy, they really don't want anyone to cut and paste from their research! So, I typed it in by hand:

Changes in Kinetic Energy. The kinetic energy at the beginning and end of each road cycling...
Forum: General Cycling Discussion
02-11-23, 06:32 PM
Replies: 341
Views: 10,521
Posted By Fredo76

Because the physics isn't actually relevant. The...

Because the physics isn't actually relevant. The modelers state that rotating weight at the circumference is equal in effect to twice the static weight at the center - fine. But then they simply...
Forum: General Cycling Discussion
02-11-23, 06:04 PM
Replies: 341
Views: 10,521
Posted By Fredo76

The "flywheel effect" incorporated into cycling...

The "flywheel effect" incorporated into cycling models used on the internet to "prove" this or that may be the stupidest simplifying assumption that I've ever seen. OTOH, I did work in the computer...
Forum: General Cycling Discussion
02-05-23, 12:22 PM
Replies: 341
Views: 10,521
Posted By Fredo76

Sew-Ups for the win!

I guess I ain't got none of that 'sense' stuff...

https://cimg3.ibsrv.net/gimg/bikeforums.net-vbulletin/2000x1504/img_3890_936b417f43cf41caaa8fe3d54fced2e3946862fd.jpg
Looking Forward With...
Forum: General Cycling Discussion
02-04-23, 09:18 AM
Replies: 341
Views: 10,521
Posted By Fredo76

Aero for solo riding. Light weight for pack...

Aero for solo riding.

Light weight for pack riding.

Sew-ups for nostagia trips. :)
Showing results 1 to 14 of 14


 
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