Happy Jack Posted October 25, 2012 Share Posted October 25, 2012 So they don't so much fly as plummet? [size=1](Extra brownie points if anyone recognises the source of that quote.)[/size] Quote Link to comment Share on other sites More sharing options...
brensabre79 Posted October 25, 2012 Share Posted October 25, 2012 The truth is that a bee can fly, but it can't glide. This is what happens when scientists use terms that can be interpreted in many ways in order to try and explain something to lay people. It doesn't always work out. And this is why I think there is still debate three pages on over a scientific fact, when the debate should be about what is meant by the terms being used. And this is why I'm often wary of products that make wild claims backed up with scientific language that can be misinterpreted. I think the truth is: If you put your cab on a beer crate/chair/stand/block of foam/expensive block of foam/carpet/etc. it will, to varying degrees, change the way sound coming from your cab interacts with its surroundings, and therefore what you hear in the room. Whatever works for you is what you should use. And I think from the looks of things Alex has come up with a small, light and portable solution which will be available soon. Quote Link to comment Share on other sites More sharing options...
alexclaber Posted October 25, 2012 Share Posted October 25, 2012 Don't bumblebees gain the extra lift, that simplistic calculation said was unavailable from their wing size and reciprocations per minute, through the creation of a vortex which generates extra lift compared to how a bird wing works? Usually when scientific theory differs from reality it's because the science is incomplete! Quote Link to comment Share on other sites More sharing options...
WinterMute Posted October 25, 2012 Share Posted October 25, 2012 [quote name='alexclaber' timestamp='1351157456' post='1847950'] Don't bumblebees gain the extra lift, that simplistic calculation said was unavailable from their wing size and reciprocations per minute, through the creation of a vortex which generates extra lift compared to how a bird wing works? Usually when scientific theory differs from reality it's because the science is incomplete! [/quote] Who said "one man's science is another man's belly laugh..."? Quote Link to comment Share on other sites More sharing options...
brensabre79 Posted October 25, 2012 Share Posted October 25, 2012 [quote name='alexclaber' timestamp='1351157456' post='1847950'] Don't bumblebees gain the extra lift, that simplistic calculation said was unavailable from their wing size and reciprocations per minute, through the creation of a vortex which generates extra lift compared to how a bird wing works? Usually when scientific theory differs from reality it's because the science is incomplete! [/quote] A bee is very small and, at that size, air behaves like a more viscous fluid than it does for birds and helicopters. So the laws of aerodynamics are quite different for bees and other insects. Any statement that invites misinterpretation is far from being scientific. Quote Link to comment Share on other sites More sharing options...
Ghost_Bass Posted October 25, 2012 Share Posted October 25, 2012 [url="http://www.youtube.com/watch?v=Q9AM4reGAjM"]http://www.youtube.com/watch?v=Q9AM4reGAjM[/url] Quote Link to comment Share on other sites More sharing options...
Mr. Foxen Posted October 25, 2012 Share Posted October 25, 2012 http://www.jimloy.com/physics/bee.htm http://www.straightdope.com/columns/read/1076/is-it-aerodynamically-impossible-for-bumblebees-to-fly The interaction between the sets of wings was an efficiency thing, they second set is timed in such a way to benefit from the effect of the first. Quote Link to comment Share on other sites More sharing options...
Happy Jack Posted October 25, 2012 Share Posted October 25, 2012 [quote name='brensabre79' timestamp='1351159519' post='1847981'] So the laws of aerodynamics are quite different for bees and other insects. [/quote] So they're not so much "laws" as "guidelines" then? Quote Link to comment Share on other sites More sharing options...
cheddatom Posted October 25, 2012 Share Posted October 25, 2012 "use your ears" is the best advice I think, which is why Dumbo can fly despite his mass. Quote Link to comment Share on other sites More sharing options...
Ghost_Bass Posted October 25, 2012 Share Posted October 25, 2012 Quote Link to comment Share on other sites More sharing options...
Wiggybass Posted October 31, 2012 Share Posted October 31, 2012 [quote name='Lfalex v1.1' timestamp='1351091586' post='1847226'] So if all these bits of foam are so good, why do 99.9% of cabinets have RUBBER feet? [/quote] 'Cos they're very cheap, especially when bought in bulk. Just for fun I made my own 'Gramma' out of a bit of 3/4" ply a bit bigger than the footprint of my cab, glued a carpet tile on top and two bits of flightcase foam on the bottom, total cost about £6, works a treat in certain environments - have a go! Quote Link to comment Share on other sites More sharing options...
Lfalex v1.1 Posted October 31, 2012 Share Posted October 31, 2012 Ah, I see. So while certain manufacturers spend a (small) fortune in design/technology/material R&D, they'll skimp on feet? Quote Link to comment Share on other sites More sharing options...
AttitudeCastle Posted October 31, 2012 Share Posted October 31, 2012 [quote name='Lfalex v1.1' timestamp='1351706467' post='1854455'] Ah, I see. So while certain manufacturers spend a (small) fortune in design/technology/material R&D, they'll skimp on feet? [/quote] It's like Dood has said before, why would companies spend a fortune on all this and skimp on valves and end up making something sound naff! Very strange. Quote Link to comment Share on other sites More sharing options...
TimR Posted October 31, 2012 Share Posted October 31, 2012 (edited) Because mechanical coupling is only bad in certain situations. In most situations it's more important for your cab to sit flat on the floor and be stable without sliding about or scratching it. Edited October 31, 2012 by TimR Quote Link to comment Share on other sites More sharing options...
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