Hydraulic disc brake uses brake fluid ( Ethylene Glycol HO–CH2CH2–OH) to transfer pressure from controlling mechanism to braking mechanism. It was first used in 1914 for racing cars.It is based on the principle of Pascal Law which states that "The pressure exerted anywhere in a mass of confined liquid is transmitted undiminished in all direction throughout the liquid".
Candle Light Powered Fan
Candle light fan use technology which converts heat directly into electricity using a effect called Seebeck. The only problem with these fans is their efficiency which is lesser than 10 %. To use this technology we need thermoelectric materials such as Bismuth Telluride(Bi2Te3) or Lead Telluride (PbTe).
Physics Project Ideas
Physics projects for science and engineering students discuss ideas related to our day to day life and some of them have implemented successfully in various science fair competitions around the world. As we all know that Physics is involved in every activity we do, from a walk to talk, from electronics to robotics and from computer science to aeronautics and finding the idea on this topic is going to be very easy. So, In this post, we will discuss some of the projects based on this field
Solar Powered Bag
In the last few years, phones are getting smart, Laptops are becoming Tablets and CD Players are becoming iPods. All these changes make us more dependent on electronic devices than ever. Though these devices keep us connected, when the battery runs out they become a liability. That makes battery charging one of the most important needs of today’s world.
In my post mobile charger using a bicycle, I discussed how we can charge our battery while riding on a bike. Today we will discuss Solar-powered Bag which is not only useful and handy but uses green technology too. The solar bag consists of skinny film solar cells and batteries. It contains a flexible monocrystalline solar panel, battery, charge controller, plugs, cords, and light bulbs. It provides users with power up to 120 watt-hours/day, capable of powering electronic equipment rated up to 300 W.
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