1. Aerospace

Category Archives: Aerospace

Holographic Universe.

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Is everything connected ? ( I mean EVERYTHING.).....and by what ? ( No religion please just physics chemistry biology and any other 'ologies.)

I have my opinion already but I would like to ask this to this site.

Do the stars affect us ?

Is it gravity or magnetism ...both or just

AH and The Volt

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We went round on the Volt, involving the Taxi Challenge, etcetera. Anonymous Hero pegged it well. New York Times Op Ed Page piece titled G.M.'s Electric Lemon by Edward Niedermeyer further confirms my judgement, that when it comes to cars, AH, knows what he is talking about.

Obviously over the

Biogas Plant

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Dear All,

I want to install a self made Bio-gas Plant at Home in my Village.

1.) Design and Requirements

2.) Purification of Bio-gas

3.) Essential Instruments required

4.) P&ID if any

5.) Storage of fossil.

Please help me in this regard.

difference between cable tray and cable ladder

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Kindly justify my answer and guide me in proper way as per code of practice as i know cable ladder are usually recommended for carrying heavy cables thats why it is used in substation,water treatment plants and the most important thing is the cable are exposed seen from top to bottom which is very

Electric Car Engine Powering Need Questions

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Not sure how to phrase this question thread, but here goes:

When an electrical car engine is running, the batteries that make it run, deliver how much energy/voltage(?) I am speaking of a battery only based vehicle non-fuel powertrain. As it delivers its power for a 200 mile per recharge cycle. S

Wound Induction motor Rotor Voltage

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Why Voltage is applied to to the Rotor of Wound Induction Motor?

Is this voltage is supplied through carbon brushes?

Is Rotor voltage is supplied for only starting period of motor?

What is the role of Carbon Brushes in Wound IM?

What would happen if rotor Circuit is open (No carbon brush

Hydroelectric Potential

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Hello all. My first post. Can someone help me with a calculation? I'm looking to buy some land with a stream on it and I would like to develop the hydroelectric potential of the site. Head is 200 feet with 12 cfs and the length is 7000 feet (from diversion to powerhouse). I was told KW=Head X F

Direct Current Energy Sensitivity.

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Hi Everyone: I need your help with a personal issue.

I just recently discovered that if I came in close contact with a Direct Current power source such a battery I would loose my balance. I also found that if I was exposed to a DC energy source that was positive (+) I would be pushed backwards.

Diesel Fuel

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Hi all, This Question is about new Diesel technology. A customer overseas was told that thay could use Aviation JP8 fuel replacing the need for #2 Diesel Fuel. Customer has 42 Ford (2006MY) 6.0 Ltr Diesel pick-up with US EPA Emmisions. Out of 42, 11 Vehicles have failed. Thay Asked me to come over t

DG set selection

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Dear sir;

We have a construction going on. It is a hostel with 16 rooms. Every room will have 1 tubelight and a fan. Apart from this we will have around 20 lights around the building for public utility space. The hostel has a solar assisted electric water heater + one borewell to lift water for

footer question

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I need to put up a "hand ball" wall for a local prison.

They require it to be 22' high and 40' long with a 12" thickness and no support walls.

I feel I need a 6' wide footer 2' thick with the bottom 6' below ground with rebar going from the bottom of the footer to the top of the wall.

Pressure vessel thickness

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We have some column of Material SA 516 Gr-70 and below is design condition and thickness result.

Design Pressure (KPa) 950 720 500
Radius (mm) 2000 2200 2200
Joint Effie. "E" 1 1 0.85
thickness rep. (mm) "T min." 13.83 11.51 9.40
Corrosion Allowance (mm) 3.


  1. Aerospace