The Burlat Brothers' Bizarre Aero Engine

In the Burlat engine, B becomes the axis of the crankshaft ; BQ the crank; Q the crank-pin; while P'P materialises into a rigid rod, eye-jointed to the crank-pin Q as indicated, and produced as shown; each end carries a piston S, sliding in a cylinder, these cylinders forming one with the larg

Black History Month Famous People

I signed up to be emailed each day a new scientist, engineer, or inventor was added to the list for Black History Month. I have only recieved one or two. Is there a link to a list of all the posts that have been made?

Thanks

Ray Jenkins

FibreGlass Insulation

can fibreglass insulation blankets be broken down and reused in other applications.

i currently have nearly 100tonnes of fibreglass blankets i am trying to find an alternative use for.

do the chemicals, binders and additives in this material restrict the possibility of breaking it down?

Small Bore Hypotube – Polished Inner Lumen

I am looking for a hypotube (stainless steel) with an OD of 0.010" and an ID of 0.005". The challenging bit is that the hypotube needs to be about 1.5m long with a smooth or polished inner surface. Can anyone point me to a supplier with the capability to provide this type of hypotube?

Thank

Short Circuit / Coordination Study

If I have a hvac system condenser that is 11kvA and a hvac system duct heater that is 36kW.. how would I show that as a load on ETAP? Would it be induction machine or a synchronous motor?

How would I convert those items to HP? I was told to use a formula of 1.5kVA = 1 hp from another engineer

Woodburner Problems

I finally finished the woodburner Iv had previously asked advice for, though its up and running it is by no means finished. The brief i set myself was to try to build a woodburner to heat the old pub i live in. I wanted it to be aesthetically pleasing, to have a big glass door to see the fire, for

Determining the Pipe Invert Level

Hi there!!

How to find the the Invert level?? I have 2 manholes the one has IV level 1.5m , the pipe size is 200mm and the distance between 2 manholes is 20mtr.. slope 1:100. how to find Invert level of the 2nd manhole?? thanks!! the slope of 1:100 is correct??

Thank you!!

Pipe for Compressed Air

Can someone finally lay to rest the arguments regarding the use of PVC pipe for compressed air and gases. I have read many statements pro and con for PVC. Some say it shatters, others say they have used it for years and never had a problem.

Schedule 40 PVC is rated at 480 PSI and sc

Phase Loss

what happends when you lose a phase (i.e) blown fuse or something similar

in a wye connection in a line side and what happens when you lose a phase in the load side of a wye?

Clear Teflon Tube for Lightpipe

I guess this question has two parts.

I'm prototyping a solar energy device, part of which is a light pipe to transport the collected solar energy, about 300 - 2500 nM.

I'm planning on making this from a flexible tube filled with a highly refractive liquid, stoppered at each end with cl