Several Chinese Internet sites and parts of popular Web portals went offline Tuesday amid tightening controls that have already left mainland Web users without access to Facebook, Twitter and other well-known social networking sites. China stepped up its crackdown on social networking sites in March over online allegations surrounding the treatment of Tibetans, and the blockages continued through the 20th anniversary of the Tiananmen Square demonstrations and the recent ethnic riots in Xinjiang.
Addressing applications requiring high throughput and long switch life, the Model 3731 6´16 high-speed reed-relay matrix plug-in switching card for the Series 3700 System Switch/Multimeter family from Keithley Instruments has contacts that are rated for more than one billion no-load switch operations.
Robotic arm maneuvers and social networking sites are taking center stage at the international space station and space shuttle complex. The 13 space station and Endeavour crew members were awakened early Tuesday by Mission Control with the Rascal Flatts' song "Life is a Highway." Not long afterward, crew members began using the shuttle and space station's robotic arms to move a storage pallet holding three experiments from the belly of Endeavour to the outside of a Japanese laboratory at the space station.
Communications are a keystone of our information-based econonomy and society. The next-gen world of ubiquitous computing and cloud data services will rely on high-quality comms in the user interface, RF, and hard wire, to truly exist. Here are some design articles to help you in your communications design tasks.
Lawmakers in France's lower house of parliament are to start debate Tuesday on a new version of a bill aimed at cracking down on online piracy by cutting the Internet connections of those who illegally download movies and music. An earlier version of the bill was found to be unconstitutional. Legislators in the National Assembly are to debate the amended bill through Friday, but decided not to take a vote on it until they return from summer recess in September.
The PCM-3813I PCI-104 module from Advantech features analog input data transmission of 100 kS/s. With 12-bit, 32-channel input, the module offers 2,500 VDC isolation protection and software programmable gain on each analog input channel. The PCM-3813I supports single-ended and differential analog inputs
Using software, the Expert I/O 1000 PC-based automation control module from Dajac can be set to any user-provided voltage between 3.3 V and 27 V. The control module has a USB connection and incorporates the following I/O functions: 16 digital inputs, 16 digital outputs, 2 analog outputs (6 selectable ranges each)
Intended for R&D, manufacturing, and calibration lab applications, the CL3001 calibrator from Omega features 0.0025% accuracy. The calibrator is used for temperature, DC, and pressure calibration. It also includes custom RTD and SPRT profile, RS232, USB, and IEEE-488 remote control, and NIST Certificate
The Symbian Foundation has been left with egg on its face after accidentally sanctioning what experts are calling the first text message worm in history.
The Korea Advanced Institute of Science and Technology (KAIST) has purportedly created an Organic Light Emitting Diode that is 75% more efficient than previous models. Led by Prof. Kyung-Cheol Choi, the KAIST team discovered a new type of surface plasmon enhanced OLED. KAIST explains their finding thusly: “For surface plasmon localization, silver nanoparticles were thermally deposited in a high vacuum on cathode.
Corelis announced the availability of two product bundles for stand-alone in-system programming environments. The bundles are based on the ScanExpress family of products and are dubbed ISP-TAFP and ISP-JTAG. ISP-TAFP is capable of
The ESD Pro Event Detector and the Ground Pro Ground Integrity Meter from the 3M Electronics Solutions Division are designed to protect sensitive electronics components and help prevent equipment malfunction by quickly and accurately detecting ESD, EMI and measuring ground impedance. The hand-held
Qwest Communications International Inc. is doubling its top Internet download speeds in some areas to keep up with the offerings of cable companies. The phone company said Monday it is introducing a plan with download speeds of up to 40 megabits per second and upload speeds of up to 20 mbps in parts of 15 cities, including Denver; Phoenix and Tucson, Ariz.; Salt Lake City; Seattle and Vancouver, Wash.; and Minneapolis/St. Paul
The first astronauts to walk on the moon want President Barack Obama to aim for a new destination: Mars. On Monday, the Apollo 11 crewmen, fresh from a Washington lecture Sunday in which two of them expressed concerns about NASA getting bogged down on the moon, are meeting with Obama at the White House. In one of their few joint public appearances, the crew of Apollo 11 spoke on the eve of the 40th anniversary of man's first landing on the moon, but didn't get soggy with nostalgia.
NASA's Lunar Reconnaissance Orbiter, or LRO, has returned its first imagery of the Apollo moon landing sites. The pictures show the Apollo missions' lunar module descent stages sitting on the moon's surface, as long shadows from a low sun angle make the modules' locations evident.