Information Pioneers: Sir Clive Sinclair

From mental_floss Blog:

Growing up, my family had a series of early personal computers — a Sinclair ZX81, a TI 99/4A, and even an early IBM Portable (which was not as portable as its name suggested). Today, let's talk about that Sinclair machine. The ZX81 was dirt cheap and

The Parking Lot as 'Solar Grove'

From NYT > Science:

One day early in 2004, Robert Noble, an architect specializing in sustainable design, asked himself why parking lots in the United States weren't covered in solar panels and used to generate clean energy. A few firms had been building carports with solar panels

Automation by Cell Phone

I want to operate my house by my cell phone. Moreover, I want the security signals, like gas leakage, on my cell phone by sms. and my house should be operated weather m at home or anywhere in the world. please suggest me in detail. I want to do it in the time period of one month.

Testing Switching Time of External Relay

How do I test switching time of external relay with LabView switching executive?

I am using PXI 2529 switch to test relay, I can get my drop and pick up voltage and current now I want to record my pick up and drop away time on a graph and values.

Are Engineering Shortages a Hoax?

Those who employ engineers always complain of shortages, but what's the job situation for engineers at your utility? Various studies say engineers are retiring from the power industry, students are not pursuing engineering degrees, and the power industry might be facing a job crisis in the future. D

Is This News You Can Use?

For a break from Gulf of Mexico news, we turn to the top 10 stupid environmental stories recently compiled by Environmental Science & Technologies. The ability of Icelandic volcanic ash to ground European air traffic, Michigan blaming Illinois for the Asian carp invasion of the Great Lakes, and

Should Cell Phones be Registered for Security?

One high tech advantage that criminals have today is the cell phone. With it they can communicate virtually anonymously, with great mobility and little fear of being detected. To counter this advantage, the Mexican government has started a program to register every cell phone in the country linking

Collaboration: Good or Bad?

A recent article noted the large number of students caught cheating in introductory computer science courses. But much of this involves students sharing each others code on homework assignments, not on tests. Some see this as a major ethics problem that could potentially become an ethics problem in

Designing the Car of the Future

Having survived a devastating recession, the auto industry is now racing to pinpoint what consumers want in tomorrow's cars, studying such factors as technical advances, changing behavior, and cultural trends. Should the auto be a mobile office, an entertainment center, or a flexible cargo platform

Helium Balloon: Newsletter Challenge (07/06/10)

This month's Challenge Question:

You're in your car at a stoplight, with a helium-filled balloon pressed up against the center of the ceiling. When the light turns and you accelerate, what does the balloon do and why?

The Answer will be posted right here on CR4 on August 3rd.

Is This The Fastest Case of Human Evolution?

From The New York Times:

Tibetans live at altitudes of 13,000 feet, breathing air that has 40 percent less oxygen than is available at sea level, yet suffer very little mountain sickness.

The reason, according to a team of biologists in China, is human evolution, in what

Tiered Pot Garden

For this summer, I wanted to have a huge garden full of a variety of vegetables. After I planted my garden, I realized that there was no room for herbs that I wanted to grow. So, I decided to compose a pot garden that wouldn't take as much space as laying out a whole bunch of pots on my deck. Wh

Pneumatic Transmitter Panel

Sir,

From Pneumatic transmitter panels.

I wish to replace the followings;

a) Pressure reducing valves (2pcs.).

b) Pneumatic pressure transmitters (4PCS.).

Or better still Complete Pneumatic TRANSMETTER panels. (2sets).

Attached is the detail in s