Cool Cars: The Hammond Scootmobile

Scootmobiles weren't exactly a craze, but there were enough of them built during and just after WWII for the word to gain currency. In the absence of new cars and with gas severely rationed, backyard inventors were essentially recreating the cyclecar, home building light one- or two-seaters,

Is Coating's Future in Nano- or Bio-tech?

The coatings industry is booming with new advances, from nanotechnology-based films and lubricants to bio-based resins. Which shows more promise, nano or bio? The general public has questions about the safety of nanotechnology while the economics of raising crops for chemicals rather than food has o

How Well Does Engineering Fit in?

The term "teamwork" is impossible to avoid in any published discussion of the operation of a healthcare facility. While not exactly a buzzword, has it been overused? Does the emphasis on teamwork reflect day-to-day working reality for the engineering function in your organization? How well integrate

Is Nuclear Power in Trouble, or is It Media Hype?

A recent Reuters poll of 19,000 people worldwide found that 62% oppose nuclear power generation, and that it's falling behind almost every other form of power generation in acceptance. Could this be the beginning of the end for nuclear? Or is the media hyping up the backlash following the Japanese t

Are You Driving Less in 2011?

With the cost of gas holding steady and the economy seemingly headed south, Americans logged 15.5 billion fewer miles this year than they did during the first half of 2010. So says a new report by the NHTSA, which also found that roadway use is at its lowest point since 2004, and driving is do

Disconnected Charger Draining Device Battery

I have a Lithium ion battery powered screwdriver that requires disconnecting when fully charged. (unlike its predecessor which remained on permanent trickle charge).

My new screwdriver sits nicely in its charger, but I am wondering with the mains power off (when the screwdriver is fully charged). W

Lightning Connection

Dear friends, a client has a lightning rod with the down connection I believe wrong connected and confirmed by a friend, see attached picture pls. The rod goes through an aluminum pipe wich makes a large impedance on the rod. Acording to IEEE 124 1991 2.2.6 this should not be done, the thing is I

Spring Type Electrical Connector

Hi all,

Does any one know blind mating type of connector....? I have an application where the connector is placed in back cover and PCB in front cover.

when i assemble front and back cover, the connectors should automatically make contact with the pads provided in the PCB.

As per my knowledge, Po

How To Check Open Port On LAN

Dear Sir,

We are using an IP range from 172.16.1.1 to 172.16.31.250 on our LAN network. I want to check which port is open on which ip address? Kindly give me a procedure how to check for an open port on active/inactive IP address?