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Robot Arm Using Arduino Mega and ROS

“The idea is to create a robotic arm which can perform pick and place objects using object recognition. Story Robot Arm (5 DOF) Using Arduino Mega2560 and ROS Note: Knowledge of ROS basics, TF and URDF is must. The idea …

Scientists ID Three Causes of Earth’s Spin Axis Drift

“A typical desk globe is designed to be a geometric sphere and to rotate smoothly when you spin it. Our actual planet is far less perfect — in both shape and in rotation. Earth is not a perfect sphere. When it …

Shrinking semiconductor lasers to the nanoscale

“An ultracompact laser has been made using nanoscale semiconductor columns A tiny laser comprising an array of nanoscale semiconductor cylinders (see image) has been made by an all-A*STAR team1. This is the first time that lasing has been achieved …

Simon Says Game With Arduino

“DIY Simon Says Game with Arduino , i will show you how to make a Simon Says Game using an Arduino , it’s very simple , I’m suing Arduino Nano ,”

Stanford’s JackRabbot 2: The polite pedestrian robot

“Like its predecessor, JackRabbot 2 is learning how to navigate safely through spaces occupied by people, following the rules of human etiquette. What it learns could help it move comfortably among us in the future. If you’ve ever been …

Stepping up water splitting

“Cheap and accessible cobalt-based catalysts could fast-track the industrial-scale production of hydrogen from water. A low-cost and simple alternative to expensive platinum-based catalysts that generate hydrogen from water could soon be available, thanks to A*STAR researchers. A team from …

Timer Delay Using IC-555

“This is timer delay circuit using ic-555. Component required : Small PCB IC555 Resistor : 10k, 100K, 4.7K Capacitors: 0.01 uf, 470uF”

Tiny camera lens may help link quantum computers to network

“An international team of researchers led by ANU has invented a tiny camera lens, which may lead to a device that links quantum computers to an optical fibre network. Quantum computers promise a new era in ultra-secure networks, artificial intelligence …

Two Quantum Dots are Better than One: Using One Dot to Sense Changes in Another

“Quantum dots are nanometer-sized boxes that have attracted huge scientific interest for use in nanotechnology because their properties obey quantum mechanics and are requisites to develop advanced electronic and photonic devices. Quantum dots that self-assemble during their formation are particularly …

Two Transient Clap Switch Circuits

“Transient Clap Switch Circuit is the circuit which turns ON with a clap sound. The output remains ON for some time and then turns OFF automatically. The time of activity can be controlled by varying the value of capacitance of …