- First Name
- A. J.
- Dec 8, 2019
- Reaction score
- Tesla X LR+, Lexus SUV, Toyota SR5, Toyota Landcruiser
- EE (Retired)
OK. But you know you can look up these words yourself.Zoom in. Way in, on the word refraction.
Refraction definition, the change of direction of a ray of light, sound, heat, or the like, in passing obliquely from one medium into another in which its wave velocity is different.
As there is no curve I don't know what curve you mean. Are you saying that the rays in and behind a lens are chords of a curve? And that this curve follows the curvature of the lens? Let's say I use flint glass with n=2 to make a dual convex spherical thin lens with front surface having radius 5 cm and rear surface having radius 7.5 cm. An object infinitely far in front of this lens would image on a focal place 3 cm behind the lens and an object right in front of the front focal point would image infinitely far behind it. Could you please sketch these curves? I'd like to understand where you get some of these ideas.You will find the curve matches the curve of the lens.
Well I suppose any time one draws anything on a piece of paper he uses geometry but you said something about using a surgically precise tool and making hamburger. Is this in reference to my shaky hand? It would seem to imply that there is some flaw in the drawing. You seemed to think at one point that it was that the ray to the drivers eye was missing. I added that and it made no difference whatsoever in the conclusions which one should draw from the drawing. Can you point out what the error(s) are? And better yet, correct them?Your drawing uses geometry?
That's the great thing about the internet. You learn something every day. That's something else I didn't know. Now in my defense my misconception is a fairly common one. Just look up "if you can't see my mirrors" on the web. One article points out that one does not see these signs as often as he used to as drivers are now using cameras to see behind their trailers.The sign is for when they are backing up. Frequently accompanied by a beep beep beep sound.
No. If it were for looking primarily to the side it would be wider. The vertical extent is there because things of interest in the vertical direction subtend a larger angle than things in the horizontal.You are still mistakenly believing that the side mirrors are for capturing the rear of the vehicle. They are for capturing the lane next to the vehicle, for the length of the vehicle. Look at the orientation of a mirror on a big rig sometime. Notice its larger on the vertical than the horizontal. If seeing around to the back was important don't you think it would be different?
Again something I didn't know! And that other Tesla drivers don't know either. Most of us, erroneously evidently, think that the issue is with sufficient assurance from the sensors, that it is safe to pull out to pass and that when the autopilot decides to pull out to pass that it does not do so unless an overtaking vehicle is safely far behind and closing at a safe rate.That blind spot is in reference to reverse.