Hi All,

In India we have a popular perception with all auto guys, they say a new vehicle for their 1st 1000km/ 1 month the speed should not be more than 40kmph.

Is this because the new engine needs seasoning i.e. when driving at low speeds the new engine material expands to a limit x,

Greetings All,

I need to build a catch basin for storm run off in a parking lot, googled several different designs, but what i have in mind is a small debris catch with a clean out, attached to some sewage leach field pipe buried in 3/4 inch gravel. Not counting the size requirements, would

I am working on a vintage "sands water heater" (sands mfg co, cleveland ohio) for a friend of mine. We are NOT going to replace the missing water heating coil, it is to be used as a jobsite outdoor heater only, hopefully on regular bottled propane.

The old controls had a pilot light, valve,

hi gents,

i have universal half wave self excited automatic voltage regulator for ac generator. this is how it says in the manual, the regulator contnuous load current is 7.5 dc amps.

what they mean by self excited regulator! do they mean that this regulator is for self excited gen

can we transmitt electric current in ray,which can't harm our environment and animal

Good day all,

I am an electrical engineer new to the practical field. I am keen and want to read SLDs. Can you recommend any website where I can get them. Read, analysize and study them.

Awaiting your assistance.

Regards,

SLD Reader

Below is a video from a high altitude balloon flight that someone recently did.

Nothing new now days. But what Is new is the sound of a Jet passing by.

I wonder if anyone could calculate the distance the jet passed by, by the sound of the doppler shift and it's intensity.

Obviously the cl

I need to know the initial moisture contenet and final moisture content of PC (Polycarbonate) RTP 399 X 102168 A material.

If possible also want to have the complete data cheet of the same material.

How important is the height of a bolt head to the integrity of the bolted connection?

I would've thought the failure mode will be shear so a bolt head doesn't contribute to failure?

How much can you cut it back before it becomes a concern?

Give me details about power factor?

With University of Illinois chemistry professor Alexander Scheeline releasing plans and software to allow students to turn their cellphones into spectrometers, the argument is that by making the instrument themselves, students will learn more about the fundamentals of spectrometry. Do you think that

The biodegradable SunChips bags billed as 100% compostable have proven too noisy for consumers, so Frito Lay Company is returning to quieter packaging that can't be recycled. Should the company have bagged the SunChips sustainable bag? With sales down since its introduction and Web pages for and aga

CNN reports that in a survey of U.S. Internet technology and infrastructure executives, 60% expect a "major cyber-incident" within two years (and define that as an outage of at least 24 hours, a loss of life, or the failure of a company). Others, however, say that cyber-terrorists' ability to do ser

How the reaction taking place between LioH and Stearic acid for making grease ?

Do you like me think H&S is now going too far? Students aren't allowed to use equipment in physics labs or engineering workshops that were common place during my time at school and later college. They come in to the workplace with little practical knowledge.

My son went to the same en

if i use killed carbon steel in high temperature service for example in high pressure steam its temp 380 c and pressure 38 kg/ cm2 than what happen. i mean what chemical reaction on this metal and deoxidising elements. and why we use killed carbon steel in low temp service.

Dear Sirs,

we are working in new pipe lines 2 Km, when we installed the magnesium anode and zinc ground cell we get 640 mV from anode and 540 from ZGC which are not within acceptable range so kindly advise how to rectify this.

and if these anode had been stored for long time ( 3 years

Dear All,

I am working in estimation field,please help me to clear my doubt in the following.

There is one MV-Panel with two incomers,one from 1600KVA Transformer and the other from 1500KVA DG. there is electro-mechanical interlock between incomers.Do that comes along with thw MV Panel ?or

A company called Planar Energy has developed a solid-state electrolyte for lithium batteries which is inexpensive to produce and is intended to replace the less stable liquid electrolytes currently in use. This technology also yields extended capacity, which translates into extended range for

From Scientific American:

It's common knowledge that the U.S. no longer produces enough scientists and engineers to keep pace with the rest of the world. Now, the organizers of the USA Science & Engineering Festival are doing something about it, with a two-week, nationwide extrav