On Friday, March 1, 2019 at 9:32:15 AM UTC-8, Frank Krygowski wrote:
On 3/1/2019 11:15 AM, wrote:
On Friday, February 22, 2019 at 11:25:51 AM UTC-8, Frank Krygowski wrote:
On 2/22/2019 1:39 PM, wrote:
On Friday, February 22, 2019 at 6:31:09 PM UTC+1, wrote:
On Thursday, February 21, 2019 at 1:46:38 PM UTC-8, Frank Krygowski wrote:
On 2/21/2019 4:27 PM, wrote:
On Thursday, February 21, 2019 at 1:10:42 PM UTC-8, Frank Krygowski wrote:
On 2/21/2019 12:52 PM, wrote:

Remember that I was describing the coast down test I had up in Cull Canyon where I would coast down a really rough section of road and then it would flatten out and when I hit a 100 yard long patch of new and very smooth pavement the bike would actually accelerate? Everyone wanted to argue that wasn't possible but I did it again and again. As the summer wore on the asphalt aged and got rougher and though it was still pretty smooth the effect had disappeared.

When you say the road "would flatten out" do you mean it was horizontal,
instead of downhill? Or do you mean the bumps went away and it remained
downhill?
--
- Frank Krygowski

It went downhill on a very rough road, flattened to horizontal or at least the 0% grade indication on my altimeter and then it climbed a bit before descending a bike. The increase in speed was immediate upon entering the smooth section and not a slow build up of speed as would come from a declining road.

OK, if you were coasting and you had no tailwind that exceeded your
speed, you had nobody pushing you forward (which I've done for people
many times), and you had no rope towing you or some other weird situation...

And your bike actually accelerated when the road was horizontal? Yes,
that's impossible. Sorry, Tom, this is basic physics.

(And I had to include the rope tow because that was Jute's "deus ex
machina" on his first weird braggart tale here.)

Your story does, however, indicate the power of suggestion and how it
can mess with our perceptions.

--
- Frank Krygowski

Frank, if this is against physics why haven't you actually explained this to us?

To my way of thinking if E = 1/2M*V^2 and you reduce the rolling resistance you coast for a longer distance to expend the energy. But that isn't what happened. As I said - when I hit the smooth pavement the bike increased its speed.

This was not a single case but multiple experiments and as the smooth pavement degraded over the summer and grew rougher the increasing speed disappeared at least to the level where it wasn't detectable.

I think what Frank tries to say is that to be able to accelerate there must be a driving force, one of Newtons laws. If you are coasting on flat terrain without a tailwind there is no driving force.

Exactly. In fact, there are retarding forces, those being air resistance
and rolling resistance, at a minimum.

And as to Tom's question, why haven't I explained it? I guess I
foolishly persist in believing that some things are obvious to educated
people.


--
- Frank Krygowski

So when faced by experimental fact you simply deny it. Seem like most teachers. "That ain't what I believe so it didn't happen." Real education there alright.

The reason that I mentioned this in the first place is because it did not meet my understanding of physics. I tried this multiple times with the same results. I expected that someone here would have some explanation for it and instead some jackasses said that it was impossible and my personal experience wasn't just incorrect but a lie. This is the sort of people that inhabit this site. Freaks like Slocumb that tell us what it is like in the US after living most of his life in foreign countries and Frank who was used to dictating "the truth" to students and thinks that the whole world is now as stupid as his students were for not punching his lights out.

A week ago I did the same route. The asphalt has now degraded to the same consistency as that of the surrounding area and it acts just as you would expect it to.

Yes, Tom, we foolishly persist in believing that F=m*a just because
Newton demonstrated it hundreds of years ago and it's been confirmed by
millions of measurements ever since.

We foolishly doubt a guy who claims he felt his bike accelerate when no
force was available to accelerate it, and when there had to be forces
decelerating it. And who has many times attested to his own bad memory.

Oh, and who now says the phenomenon has stopped, so his world has
returned to normal physics.

So we believe fundamental 10th grade science instead of your daydreams.
We are an odd bunch, all right!

--
- Frank Krygowski

Make another moronic statement. It makes you look so smart. I actually measured that speed increase on the speedo. Initially I was 2 mph when I entered that section at 20. And it didn't increase as if the flat was a little downhill but very rapidly. And as I said - after the asphalt aged to the same roughness of the approach that speed increase disappeared.

Tell me Frank - did your college education allow you to design and program communications boards for the Space Station? To design and program several anti-Cancer instruments? The design and program the PCR automation to detect HIV? Did it allow you to work in high energy nuclear research? Did you work with the military on their systems? At Lawrence Berkeley Labs?

There is no end to the dumb things you have to say because something that you expect to happen doesn't do it that way. Are you simply jealous because you've never done much? One of the guys that I rode with was a professor that quit and became a truck driver because he couldn't stand people like you.. He also made more money.