About: Ibrar Ayyub

In an effort to resume previous work [A, B, C, D] on developing a crystal oven for radio frequency transmitter / receiver stabilization purposes, the first step for me was to create a device to accurately measure and log temperature. I did this with common, cheap components, and the output is saved to the computer (over 1,000 readings […]

May 2014 was the third warmest May in the 35-year satellite-measured global temperature record, and the warmest May that wasn’t during an El Niño Pacific Ocean warming event, according to Dr. John Christy, a professor of atmospheric science and director of the Earth System Science Center at The University of Alabama in Huntsville.

Description The LTC®3607 is a 15V dual 600mA monolithic synchronous step-down regulator which has only 55μA quiescent current. Intended for a variety of applications, including dual lithium-ion battery products, it operates from a wide 4.5V to 15V input voltage range. It features a constant 2.25MHz switching frequency, enabling the use of tiny, low cost capacitors […]

An international team of astronomers including Dutch astronomers Peter Barthel and Léon Koopmans (University of Groningen) reports the discovery of a unique case of a cosmic gravitational lens. Using several telescopes on the ground and in space, the scientists show that a distant radio galaxy, acting as a cosmic lens, distorts and magnifies the radiation of an even more distant mysterious dark object, thereby making that object visible.

This project is about building a PC-based temperature and relative humidity logger using the chipKIT Uno32 board and the DHT11 sensor. The project setup requires no additional wires (other than the USB cable) and components; the DHT11 sensor is directly plugged into four I/O pins of the Uno32 board and the project is ready to […]

Quebecers are particularly hostile toward the development of shale gas, but this aversion is driven less by ‘not in my backyard’ (NIMBY) attitudes than ‘not in anyone’s backyard (NIABY), according to a comparative study of 2,500 Quebecers and Americans conducted by Éric Montpetit and Erick Lachapelle of the University of Montreal’s Department of Political Science. Professors Barry G.

Saelig Company, Inc. (www.saelig.com) has introduced the new CGM-101 CircuitGear Mini – a unique, low-cost PC-based instrument which provides the features of six devices in one USB-powered compact box: 2-channel 11-bit 2MSa/sec 200kHz oscilloscope, 2-channel spectrum analyzer, 2MSa/s 8-bit arbitrary-waveform/standard-function generator with 8 digital I/O lines. It also functions as a network analyzer, and a […]

Increasingly, scientific findings indicate that an organism’s diet affects more than just general health and body condition. In an article published in a forthcoming issue of the journal Physiological and Biochemical Zoology, researchers from Nicolaus Copernicus University have found evidence that the diet of some animals must include cholesterol in order for them to enter necessary periods of energy conservation known as torpor.

That’s where Cota by Ossia comes in. The startup is the brainchild of physicist Hatem Zeine, who decided to focus on delivering wireless power in a way that was commercially viable, both for large-scale industrial applications and for consumer use. Zeine has been hard at work developing his wireless power technology and refining its delivery […]

Thwaites Glacier, the large, rapidly changing outlet of the West Antarctic Ice Sheet, is not only being eroded by the ocean, it’s being melted from below by geothermal heat, researchers at the Institute for Geophysics at The University of Texas at Austin (UTIG) report in the current edition of the Proceedings of the National Academy of Sciences.