Famous Circuits Blog

IEEE Spectrum

UK Government Reasserts Its Right to Snoop on All Electronic Communications
Bionic Man is The Future of Humans, Not Robots
The Existential Threat to Dell: Chromebooks

UK Government Reasserts Its Right to Snoop on All Electronic Communications

Posted: 07 Feb 2013 07:58 AM PST

Even though MI 5 spy chief says urgency of the need to do so rests on some "pretty heroic assumptions"

Bionic Man is The Future of Humans, Not Robots

Posted: 07 Feb 2013 07:42 AM PST

For a million dollars, you can replace a lot of different pieces of your self with artificial systems

The Existential Threat to Dell: Chromebooks

Posted: 05 Feb 2013 09:55 PM PST

Michael Dell, Chromebooks will steal your market—and your fortune

IEEE Spectrum

RobotsLab Wants to Put a Box of Robots in Every Classroom
Nano-antenna Arrays May Yield Ultra-Efficient Solar Devices
Etch A Sketch Was My First Videogame Machine
Ohio State Gets a Bead on Cleaner Coal-fired Power
Mind Reading to Predict the Success of Online Games
Is Wikipedia a Real-Time News Source?

RobotsLab Wants to Put a Box of Robots in Every Classroom

Posted: 05 Feb 2013 10:16 PM PST

Four robots plus an integrated curriculum could make it fun and easy to teach STEM to kids

Nano-antenna Arrays May Yield Ultra-Efficient Solar Devices

Posted: 05 Feb 2013 09:10 PM PST

Atomic layer deposition process enables nano-arrays theoretically capable of 70-percent efficency

Etch A Sketch Was My First Videogame Machine

Posted: 05 Feb 2013 12:35 PM PST

This "drawing" tool foreshadowed early video games

Ohio State Gets a Bead on Cleaner Coal-fired Power

Posted: 05 Feb 2013 10:02 AM PST

Can coal combustion reactors strip the pricey oxygen purification step out of oxyfuel power generation?

Mind Reading to Predict the Success of Online Games

Posted: 05 Feb 2013 05:36 AM PST

Engineers devise a way to predict an online game's success by gamers' initial emotional response

Is Wikipedia a Real-Time News Source?

Posted: 04 Feb 2013 09:57 PM PST

After a mass shooting or natural disaster, Wikipedia's volunteers are on the story within hours and make thousands of edits in the first days

IEEE Spectrum

Teeny Tiny Microcopter Deploys to Afghanistan With British Troops

Posted: 05 Feb 2013 07:42 AM PST

Black Hornet is an itty bitty nanocopter designed for personal reconnaissance

IT Hiccups of the Week: Digital Navigation Error Leads to Dismantling of U.S. Navy Ship

Posted: 04 Feb 2013 12:35 PM PST

Technical issues hit Amazon, Bank of America, PayPal and Twitter; Another Market Snafu in India

Circuit Project Electronic www.eleccircuit.com

Small RF universal remote controls

Posted: 05 Feb 2013 02:58 AM PST

This small Radio Control (RC) circuit is easliy. It can install with a toy train or automobile that used a voltage supply from 6-12 volts. Which the radio receivers sectors is installed in the car will turn on – off the DC motor runs by forcing the rhythm on – off of the transmitter radioInstead of using a switch turns on-off in the car. The principle of circuit on the radio receiver section. The circuit in Figure 1. is simply a receiver and controller. By the high frequency receiver that is in a Q1(2SC828 or 2SC458) act received the radio frequencies. In rang 270-300 MHz. There is a trimmer -VC1 is determiner a value of frequency receiver in conjunction with, L1 Is high-frequency coil. Figure 1. So if adjusted Trimmer will make receive frequency changes according to the value as above. Radio frequencies that incoming is converted into a low [...]

IEEE Spectrum

Time Magazine Tackles Drones
Energy Secretary Chu’s Parting Salvo
Put Away Those 3-D Glasses If You’re Watching The Super Bowl

Time Magazine Tackles Drones

Posted: 04 Feb 2013 07:42 AM PST

Lev Grossman and Chris Anderson weigh in on the present and future of UAVs

Energy Secretary Chu’s Parting Salvo

Posted: 03 Feb 2013 01:26 PM PST

HIs long farewell letter is as interesting for what it leaves unsaid as for what it says

Put Away Those 3-D Glasses If You’re Watching The Super Bowl

Posted: 03 Feb 2013 11:02 AM PST

Today's Super Bowl will not be televised in 3D

Circuit Project Electronic www.eleccircuit.com

The PIR Movement detector with light-activated

Posted: 03 Feb 2013 04:10 PM PST

The movement lasted only one. Did not reach the detection accuracy of Pyroelectric. As product of a Passive infrared detector PIR. It will detect the change of the infrared radiation emitted by people or animals in motion. And the dictates that run the sirens or devices as needed. Principles of PIR. People or animals in the heat radiation spread around. The exact amount is number one. When a motion or movement will cause temperature changes in that area. Thermal energy changes. This results in a heat radiation wave spread out. About 0.74 to 300 microns wavelength corresponding to the frequency of the Infra Red fit. MPCC to the PIR. The MPCC – IC to replace an amp circuits difficult. It also enhances the ability to detect the PIR. In this project, we use number KC778B. It is the function of Enlarge signal of PIR motion detectors provides are strong enough [...]