does it make a diff if i amplify the signal @ the antenna or @ the tv? i have 100' of cable & am amplifying @ the tv but some signals fade dependent on weather?

From mental_floss Blog:

Taking a stroll through old Popular Mechanics and Popular Science-type magazines is always good for a few smiles. Here are ten images worth taking a closer look at: So whatever happened to the robots we were promised in the 50s and 60s — you know, t

From PopularMechanics.com Science - RSS Feed:

With four silver sheets hung from horizontal arms and attached to a stout mast, MegaWatt Solar's trademark solar system brings to mind a square-rigged schooner of old. But instead of catching the wind, the sheets—actually paraboli

I'm trying to power the space heaters in a 25MVA auxiliary transformer, but it wont come up.The power supply to the control panel has a mechanical interlock and the input to the panel comprises of supply1 and supply 2(415Veach).But am powering just supply 1 and the under voltage relay in the interl

Could anyone please make me understand about radiant temperature, and also how to control the same?

From NYT > Science:

Boeing and Lockheed Martin, the aerospace giants with decades of experience working on America's space program, will happily sell rockets to carry astronauts into space, but the companies are leery about taking a leading role in President Obama's vision for a re

I have two VinoVault PVV-15 compact wine cellars which use "heat-pipe" technology. One of them runs too cold, around 42F rather than the recommended 56F, no matter how one adjusts the setting. I was wondering if one could place a rheostat between the electrical supply (normal household outlet) and t

In a single bevel groove, its welded by GTAW & SMAW. After pwht we found there is one repair is near the root. Is it acceptable to repair from the backside as per codes. Please inform me.Thank you

I am working on a book and am definitely NOT a mathematical person. I would like to know: if a rocket leaves earth on a mission to Pluto, and shortly after leaving Earth is off by 1 degree, if there is no trajectory corrections made along the way, how far would it miss its rendezvous with Pluto?

Dear sir's, Greeting from my bottom of heart. I am an Instrumentation Engineer with 5 years Experience as Engineer. Now I want to run my own business, there is any idea to setup a small business with investing low amount because I don't have lot of money. I want to stay in technical field.

Dear Engineers,

Can I get a capacitor that will sustain the charges for about 3 to 4 min before its total discharge.

I want the RC = 180seconds

I intend using it an electric motor.

Thousands of it will be needed

Thanks

Lawrence

dear all,

kindly advice / guide.

which is better, making the LV side with single layer or double layer of CU foil, keeping the cross section same.

thanks in advance.

SANAD MIGDAD

Is there any technical difference between analog input barrier and analog output barrier?

I have a slip and yoke drive_shaft. It is driven by a PTO and drives a pump. I am trying to calculate the minimum outside diameter of the shaft. Is there a formula for that? Does the slip length matter as well?

Hello,

we need for our Project:India:

Maintenance Engineer Boiler

Education:
• English language, German Nice to have
• Full academic qualification in mechanical engineering
• Sound knowledge of power plant technology and min. 1

I have 40 1.8 metre solar evacuated tubes for hot water and at present 12 ,300 watt sunpower panels onto a 3.8 sunnyboy inverter straight to grid, I am soon to have 14 panels as temperature losses keep normal output below 3kwh.

I have read peoples thoughts about cooling and I tried just sim

In generator high speed shaft, the bearing seating had got damaged. sugesstes to unsert a sleeve with weld on these DE and / or NDE bearing seatings as needed, and to machine out the shaft to the required dimensions. Please give comments/views of the same. Thanks in advance.

A question from Dublin Ireland, How do I change the gearbox oil in a Hyundai Santa Fe 2L petrol 2004. How much gearbox oil does it hold, were do I drain it form & were do I pour the new oil in.

Thanks.

We can connect the neutral point of a star winding of transformer to the ground. Can we do the same with the star point of the motor winding? If, not then why?

Please let me know what is the safe distance that need to be maintained from class I and Class II product storage tank to the hot oil system used to heat fuel oil tanks. I had refered to NFPA 30, 31 etc,. to find, still i am not sucessful. I need this data to decide the plot plan of the oil terminal