About: Ibrar Ayyub

Researchers at the University of California, Riverside have developed a silicon anode that would allow us to charge lithium-ion batteries up to 16 times faster than is currently possible. The new design relies on a three-dimensional, cone-shaped cluster of carbon nanotubes that could also result in batteries that hold about 60 percent more charge while […]

This is a simple TRIAC AC load dimmer used to control the power of a resistive load such as incandescent lamp or heater element. The max load it can handle is 400VA. Such a circuit is often found on cheap commercial light dimmers and is prooven to work reliable for the rated power. The circuit […]

Researchers at The Johns Hopkins University report they have deciphered the inner workings of a protein called YiiP that prevents the lethal buildup of zinc inside bacteria. They say understanding YiiP’s movements will help in the design of drugs aimed at modifying the behavior of ZnT proteins, eight human proteins that are similar to YiiP, which play important roles in hormone secretion and in signaling between neurons.

Some time ago, I stumbled upon an article about 25¢ I²C adapter. I usually use my Raspberry Pi to interface with I²C devices, but having it right on my notebook seemed like quite useful thing, so I decided to build a project around it. Probing Altough the mentioned article says that I²C is not supported […]

In announcing Fire, its first-ever smartphone, Amazon showed off some sparks of innovation. There are two standout features in particular: a service called Firefly that can identify everything from a song to box of cereal to a Picasso painting based on how something looks or sounds; and a technology Amazon calls Dynamic Perspective that adjusts what users can see as they tilt or move the phone.

At the end of this month, I’ll be leaving my current job. I therefore thought it’d be a nice occasion to build a new business card for my future interviews: You may remember the first version of my business card made more than one and a half years ago (time flies!). It was basically made […]

(Phys.org) —Since 1916, general relativity has provided a description of gravity that can explain many observations, including objects in free fall, gravitational lensing by massive objects, and black holes. Despite the success of the theory for nearly 100 years, scientists have been looking at ways to modify general relativity in order for it to better explain certain observations—particularly the accelerated expansion of the universe

An international team, composed of 11 institutions from six countries, including BGI, presented the whole-genome sequence of Trichuris suis, a parasitic worm in pig. Understanding the genetics mechanisms underlying the pig parasite may aid to modify the human immune response that could result in better treatments for autoimmune diseases, including inflammatory bowel disease (IBD) and multiple sclerosis

Texas Instruments designers have developed an entirely new data converter with the LDC1000 inductance-to-digital converter (LDC) designed specifically for inductive sensing applications. The LDC uniquely combines all of the external circuitry on chip that is normally required to simultaneously measure the impedance and resonant frequency of an LC resonator. It then regulates the oscillation amplitude […]

(Phys.org) —Astronomers using NASA’s Spitzer Space Telescope have measured the size of an asteroid candidate for NASA’s Asteroid Redirect Mission (ARM), a proposed spacecraft concept to capture either a small asteroid, or a boulder from an asteroid. The near-Earth asteroid, called 2011 MD, was found to be roughly 20 feet (6 meters) in size, and its structure appears to contain a lot of empty space, perhaps resembling a pile of rubble