About the nuclear thing. I think you can compress a hollow sphere to a smaller sphere and still not compress material, just wind up with thicker walls. Is this correct?
Anyway, thanks for the tips. You guys, as usual, very helpful.
I am thinking this is an important concept when it comes to cold forming.
If I bend a piece of sheet stock on a small radius it seems to flow out along the bend axis.
If I do a hardness test on a piece of metal, the ball penetrator forms a crator with some metal flowing up and forming a...
Thanks for the suggestions. I am thinking about the "isolate the stage from auditorium" approach. There may be some structural problems there.
Also, I am going to use a recording bat. pwred temp/humidity instrument to get some 2 day histories, AC off and AC on, and see how the inside air...
Yes, Baldwin, Kawai, Steinway, all want RH controlled to within 40%-60%.
Contrary to what many expect, if I open the windows between approx. Noon and 9:00PM next to the piano, the RH would be perfect. If I open the windows between 10:00PM and 10:00AM the RH would be too high. If the AC...
Thanks imok2 and KiwiMace.
I have done the study, using comparable months (matching up recorded temp data from nearby NWS station). Last year keeping it on was 16,000 KWH/mo. This year turning it off when the auditorium was not in use, 8400 KWH/mo. At $.10/KWH that is a savings of $760/mo...
.
Start to design that "hydrogen carburetor". This does not seem like a simple device: needle valve, float, butterfly, venturi, and spritzer, it ain't. Dynamic gaseous hydrogen flow control valves would look like what? Hydrogen is the lightest element in the universe, goes through metal, goes...
IMO, diesel/electric hydbrid, is the way to go. BUT!, diesel is being given short shrift by market manipulation of diesel prices. I can find no good reason that diesel is $1.00/gal more than 89 Oct. Gasoline. Oh, we have to take the sulphur out now. Well, we have to take the sulphur out of...
.
see: http://www.switch2hydrogen.com/.
I see big problems getting hydrogen to work in otto cycle engines with "minor" kits. From the photo's of these kits I have seen, it (the tanks look like SCUBA tanks) looks like they have enough compressed gaseous hydrogen in tanks to run them a few miles...
There has been many a VW run for some distance on 1/2 and 1/2 gasoline/diesel. Diesel is cut with gasoline in northern climes. I know that for a fact. So, with the state of organic chemistry such as it is, why is there not a cheap additive to change gasoline fuel to diesel fuel?
The price...
Thanks globi5, but I did not see where 90 octane gasoline was involved or treated in any way in your greasecar process.
What I had in mind was filling up your 1.9 TDI VW bug with 90 octane gasoline, then throwing in a $5 bottle of something that degraded or performed some kind of organic...
.
With the widening gap between 90 octane gasoline price and diesel fuel price here in the U.S., is there a successful and cost effective additive, treatment, etc. to rescue diesel drivers from being raped at the gas pump?
.
Thanks Goahead and unclesyd.
I have determined that the 15 T range would be appropriate. However, those rockwell testers shown on your ref. site cost more new than an older Rockwell Superficial Benchtop Tester. One bench top rig went on E-Bay for less than $500 the other day, older, but...
Goahead,
That is it. Just something simple, open setup, not necessarily certifiable (ASTM-E384, I think). Or, if there is something old, manual, surplus, etc., that would work also. Thanks.
Looking for a cheap vickers type hardness tester, 80-220 D.P.N. range, part size is 3/8" dia prepped section and 3/8" thin wall tube, 70-30 cartridge brass.
It can be VERY cheap, as long as it is repeatable, ie. simple stage, penetrator, dead weight, separate microscope and scale. Any suggestions?
What JStephen said:
If the turbulence included shedding vortices, then the body of the higher mass truck could oscillate slower, so the vortex streets would be different.
