 | Announcement | |
| Sulfur Dioxide as Refrigerant |
| By r&ddoc in Chemical & Material Science |
Hi, the other day I saw a GE "Globe Top" refrigerator (ca 1930) in a garage sale which looked quite nice and I would like to buy if there is a chance of bringing it back to life again. This fridge was in quite good conditions, but the owner could not tell me if it works or not. Cables were in poor ... more |
| Syringe Pump |
| By trinityEng in Software & Programming |
Hi, I'm currently building a small 6 micron syringe pump, to be inteface with PC software. I'm using a stepper motor of 1.8 degrees per angle, and a lead screw with a 6mm diameter. If i want to fix a pressure transducer to detect a stalled motor (means the motor rotation halted due to some electr ... more |
| Fiber Optic Resistant Lab Coats |
| By DGCYS in General Discussion |
We are getting complaints from operators working with Fiber optics. They get home and have small pieces of fiber sticking through cloths and stabbing them. Tried Tyvek lab coats but they say the fibers pass through.I don't believe this, i think the fibers are getting in at neck line. Anybody have th ...more |
| Differential Temperature Controller CAMPINI STX041Y00 |
| By dvmdsc in General Discussion |
I am trying to help someone with a solar system. The controller is a CAMPINI (ITALY). Research on the website of this manufacturer was hopeless. The manufacturer of the solar system also has limited info. (almost zero) Can anyone tell me what type and value the thermistors (2) should be? I am re ...more |
| 2003 Chevy Silverado Extreme Duty |
| By Labyguy in Automotive |
On my last hunting trip, I found myself in the deep woods and then in deep water. I had to travel about 100 yards where the road was completely underwater. For about 3 truck lengths, the water got to about half way up the door. (4 wheel drive truck of course). The truck handled it like a pro, no is ...more |
| How Can I Amplify My Hydraulic Pressure? |
| By taurus66 in Mechanical Engineering |
I have a Hydraulic pump that is good for 1500PSI or just over 100bar, is there a simple way to amplify this to nearly 6000Psi or 413bar? I did think about feeding it into a hydraulic cylinder with a large piston surface area, then pressure on the upper side of the cylinder is fed to another Cylinde ... more |
| Speed Regulators for Single Phase 120VAC Motors |
| By Laughing Jaguar in Mechanical Engineering |
I use several variable frequency phase inverters to operate my 3-Phase 220VAC machines on the available Single-Phase 220VAC. I also have variable frequency oscillators to drive my 24VDC machines. Now I have need for safely regulating the speed on a deWalt radial arm saw that has been converted to ... more |
| One-way Speed of Light not C? |
| posted in Relativity and Cosmology |
We know that the isotropy of the speed of light is one of Einstein's postulates of special relativity. Let us attempt to confirm this by determining the one-way speed of light with a cunning apparatus. The cross hairs to the right represent a setup with four observers, p, q, r and s, each a dista ... more |
| Is Hydro Fracking Causing Earthquakes? |
| posted in Industrial Processing Equipment Blog |
A seismologist with Columbia University's Lamont-Doherty Earth Observatory in Palisades, N.Y. claims that the recent earthquake near Youngstown, Ohio was caused by the injection of fracking wastewater near a fault line. There's no shortage of controversy about the effects of hydro fracking, but can ...more |
| Got a "Million Dollar" Idea? |
| posted in Coatings & Surface Engineering |
While some inventors do strike it rich, commercializing an idea is a long, complex process that requires time, money, and patience. Are you a do-it-yourselfer with a garage full of interesting contraptions or a notebook filled with sketches for the latest and greatest idea? Are you considering a pat ... more |
| Useful Tools for Sustainable Design |
| posted in Design & Analysis Software |
If you're looking to make your designs greener, this article reviews some of the most effective software packages. Among the leading lifescycle assessment (LCA) tools, say designers, is Sustainable Minds, an environmental impact program delivered in a browser-based interface. The package creates an ... more |
| EPA Revising UST Regulations |
| posted in Speaking of Precision |
The notice in the federal register identifies Manufacturing Sector NAICS codes 31-33 (that's us!) as potentially affected by the proposed changes. EPA's proposal revises the UST technical regulation in 40 CFR part 280 by: * Adding secondary containment requirements for new and replaced tanks and ... more |
| Minneapolis Bridge Collapse – A Complacency Problem |
| posted in OH CR4P! |
From a reliability standpoint, would you be more inclined to trust a standard, familiar design or something daring and new? While the old and familiar would seem to be the more tried and trusted, that's not always the case. In fact, the Minneapolis bridge collapse indicates that sometimes it is ... more |
| The Clone Paradox |
| By redJohn75766 in General Discussion |
This is a spin off of Einsteins long debated twin paradox that I thought of. Two planets that are 5,123,122,752 miles away from each other and that have the same rotation as earth are each sent a care package from a neutral observer that lives in between and in the middle of the two planets. they bo ... more |
| Maximum Demand In Malaysia |
| By mpathma in Electrical Engineering |
Hi, Guys, This is my 1st posting (just bumped to this forum). Let me introduce myself, my name is M.Pathma and I am attached to Promosys Technology (www.mypromosys.com), as Marketing Manager. Personally I am a technical guy and good in electronics, okay in LV Electrical and suck at HV Electrical. ... more |
| Glue Sensing Device/Sensor |
| By Signode in Electrical Engineering |
Dear Friends; We have four Flexo Graphics Printing Machines which converts corrugated sheets into printed boxes. We use liquid glue for joining the flap of box. Some time it happen that some boxes pass without glue and due to high speed, operator does not judge them. We want to install a device/sen ... more |
| Grounding the Body for Health |
| By ronwagn in BioMech & BioMed |
I have been trying out grounding my body for health effects. I am using a grounding mat sold and recommended by Clinton Ober and co authors of Earthing. The theoretical basis for this is that we evolved in contact with the earth and its flow of negative ions. Now we are living out of contact with th ...more |
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