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MG Midget and Sprite Technical - One for Guy, and others

How Does A Carburetor Work? Transparent Carburetor at 28,546 fps Slow Mo - Smarter Every Day 259

Yes it's longer video but very interest and the mix of young and old, father and son, two different experts/specialists to one subject.

https://www.youtube.com/watch?v=toVfvRhWbj8
Nigel Atkins

Thanks Nigel, but life is too short! Watched 4 minutes of it but poor style and presentation. It's too late. Need to shut the hens in.
GuyW

Mr. Bernoulli and possibly Mr. Newton explains all Nigel. First year fluid dymanics......happy days...
Oggers

Fair enough, the time bar at the bottom with frame representation means you can skip forward.

Bernoulli and possibly Mr. Newton couldn't see the fuel pattern at at 28,546 fps in slow motion.

Nice practical demonstration I though and I like the presenting style, but we're all different.
Nigel Atkins

Nigel

Your video shows how it works - fine, but only Messers B&N will tell you why.

Oggers

This is all above my head but I thought I heard the other day that one of Mr. Newton's theories had been disproven, it was demonstrated on a previous telly program, might have been proving a counter theory of Mr. Einstein, I don't remember. I do remember a theory (or two?) of Mr. Einstein's being disproven.

Theories can often be just be that but are then taken as being proof, knowledge changes with time, proofs, beliefs and who's in charge or won the war. I know there can be too much reverence given to some preferred people, things and beliefs, I only trust the good book.
Nigel Atkins

IIRC Newton's original formula for kinetic energy was 1/2MV which was shown to be incorrect by a French female scientist who corrected it to 1/2 MV^2.
David Billington

Did that bloke ever get anything right! 🤣

He must have (mis)worked that one out during his period of working for BMC/BL, and SU. 🤣
Nigel Atkins

Cleverly knocked up diy carb showing the basic operation I thought.

I thought it was pretty good, other than the over dramatic vocal expressions some americans are prone to, along with the bloody background music. Why do documentaries these days seem always to have to have a musical background? It's annoying and distracting.
anamnesis

It was the background music that put me off when I said I didn't like the presentation. My hearing is compromised and I cannot pick out words if there is music at the same time.
GuyW

Guy,

What? Speak up, I can't hear you.



One of the reasons that I wear earplugs when driving my Sprite. To keep it from getting worse.
Martin

Yes Martian, despite not hearing well, I also use earplugs. Sounds wrong? - Difficulty hearing isn't just about volume though, it's more to do with diciphering the noises, which can often be simply too loud and jumbled. Its more like auditory dyslexia.
GuyW

I found the video fascinating. OK, the rather OTT American style is a bit annoying but not as bad as some and the music wasn't excessive. While I think I understood the principles of how carburettors work previously, I'd never seen the venturi and atomisation in action before. Interesting that vortices develop in such small airways.

Maybe I should start wearing ear plugs when I'm driving the Sprite! I'm profoundly deaf in the higher frequencies so have aids but I don't wear them all the time. Sometimes I forget and wear them when I'm in the Sprite and then I can hear far more squeaks and rattles which worry me. Driving without hearing aids is much less stressful!

Adding a little drift to the thread - I find the little bleepers fitted to all sorts of equipment incredibly annoying as I can't hear them unless I have aids in and then only just. I have a ride-on mower that has an annoying screech when the hopper's full (an EU reg. stipulated by the French apparently on the principle that if it's annoying you won't ignore it). A flashing LED would do me but apparently they're not good enough for the French! I don't like wearing aids when I'm using noisy machinery so I only know that the hopper's full because Mrs M shouts and gesticulates madly! If she's not around I always end up having to unclog the cuttings chute because I've done one strip too many! Designers never seem to understand that older folk, for whom many of these bleepers are provided, can't hear the frequency they're bleeping at! I guess it's down to cost - small = cheap but small also means high pitched and inaudible!

I agree with Guy - it's not just about volume, it's about deciphering what's been heard. I generally can't hear consonants (especially t,s,d sounds) and have to work out from the vowels I've heard and the context what was probably said; it's why I gave up teaching as kids are so unpredictable and were forever confusing me by being 'off the wall' in the things they came out with!
C Mee

I listened on a PC with headphones so I didn't notice the music being intrusive and speech was clear to me.

How anyone can listen to anything on these mobile devices and phones, especially phone calls, is beyond me, tinny tiny speakers of such abysmal sound quality they ought to have the usual-MG-part-suppliers part numbers on them!

On most of these videos the sound quality is good and often very good but what's used to play it back on often isn't.

I've just listened to it again, the music is louder than I'd want but not overloud and most of the video is without music.

The headphones I'm using where cheap fully enclosed (shell) type from 30 years ago so not hi-fi standards by any means.
Nigel Atkins

My hearing loss is in the high frequency range. Women and children are a bit hard to hear but this can be an advantage when it comes to SWMBO. Much of it comes from standing near the starting line at drag races many years ago and driving noisy vehicles. I also have the added benefit of tinnitus which means I have a constant ringing. I was tested a number of years ago and they tried to find a frequency to tune hearing aids to to nullify the ringing but no matter what range they tried, nothing made it go away so I don't have aids and just go through life ignoring people unless they are talking directly to me.

I agree with Colin about the high frequency warning devices. They have these "bells" for bicycles out there that 9 times out of 10 I can't hear. I use a real bell that I took off of my son's tricycle since he's now 35 and doesn't ride it any more.

And why would you want to watch a movie on a phone with the lack of sound quality?
Martin

This thread was discussed between 06/07/2021 and 08/07/2021

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