All said is true but additional task of getting rid of the waste paper towel is a matter for concern and hand dryer is more environmental friendly especially in hospital. The working principles of the hands dryer is another factor for considerations some air dryer use forced hot air while others use forced air to dry. You may need to rub your hand together while drying to speed up the process.
A Voltage Multiplier Circuit is a special type of diode voltage doubler circuit which produces a DC voltage many times greater than its AC input voltage
Samuel Foluso Olabode's insight:
Where could you find a voltage multiplier? You could find this type of circuits in high voltage supply for Cathode Ray Tubes, In Electrophoresis Power Supplies and in many similar applications where you need high voltage, but less current supplies.
For any solar system you need a charge Regulator (some people called charge controller), Batteries and Solar Panels. What type of Charge Regulator (Shunt or Series Charge Regulator) you use depends on your application.
A diode made from a semiconductor can generate electricity in the presence of light. Instructables user nevdull shows how to generate a modest amount of power by arranging four 1N4148 diodes in parallel.
Dielectric Heating (or Capacitance Heating) is the method of heating non-conductive materials. Dielectric heating, also known as electronic heating, RF heating, high-frequency heating and diathermy, is the process in which radio wave or microwave electromagnetic radiation heats a dielectric material. This heating is caused by dipole rotation.
These slides explain some of the main components of a heating system and how they work. Parts addressed in this set of slides include boiler, indirect water ...
Samuel Foluso Olabode's insight:
In some location, installed boiler is just a piece of equipment occupying space unnecessary because they are not working correctly or not working at all, the key components of a boiler or any equipment must be intact for the equipment to serve its define purpose correctly.
introduction to oscillator circuits different types of oscillator circuits
Samuel Foluso Olabode's insight:
Any oscillator is an unstable system or circuit be it mechanical or electronic and requires the use of positive feedback for the process to continue otherwise the oscillation will die. This is contrary to the use of negative feedback in some amplifier for stability and to eliminate fluctuation. What are the criterion to prefer an oscillator over the other?
Why so much darkness at night when this kind of low power and efficient project could be built to give light in the developing world. As simple as this project is, you need good soldering skills and intelligence to follow through while being careful due to mains voltage involved but its not difficult to achieve.
A capacitor is an element which stores charges.Capacitance depends on three terms.Due to polarity they are two types.According to application types of capacitor
Samuel Foluso Olabode's insight:
Capacitor by definition is an electrical storage component: electrical component, used to store a charge temporarily, consisting of two conducting surfaces separated by a nonconductor dielectric. A capacitor has two terminals; the terminals are connected to two metal plates separated by a non-conductive material called dielectric.
Capacitors are widely used in electronic circuits
· For blocking direct current while allowing alternating current to pass
· In filter networks, for smoothing the output of power supplies
· In the resonant circuits that tune radios to particular frequencies
· In electric power transmission systems for stabilizing voltage and power flow, and for many other purposes
· As starting capacitor in some electric motor
· Some capacitors are good for high voltage application while some are good for high frequency use and this is subject to the type of dielectric used. Capacitors are named according to the types of dielectric.
CAPACITOR; FARAD (CAPACITANCE)
Capacitance is the ability of an electronic component to store an electric charge. Any object that can exhibit an electric charge has capacitance. A parallel plates Capacitor is a common energy storage electrical component which exhibit capacitance.
Capacitance of a capacitor is dependent on:
· The size of the capacitor; it is directly proportional to the cross sectional area/surface area of the conducting plates and
· Inversely proportional to the separation area between the plates.
Capacitance is measured in Farad therefore the SI unit of a capacitor is Farad. Capacitor is rated in Farad. A 1 Farad capacitor when charged with 1 Coulomb of electrical charge will have a potential difference of 1 volt between its plates.
1 Farad is a very big value and used to be inconveniently large hence the use of sub units like
Microfarad or uf = (x10-6 F), nanofarad or nf = (x10-9 F) and picofarad or pf = (x10-12 F).
Technology advancement has made it possible to have several Farads in one single capacitor called Super Capacitors a little larger than a coin used to store energy replacing traditional batteries. You will find this type of capacitor used as back up cell for memory in
Collin Cunningham explains what diodes are all about, describing the history of the component, the various types, and even touches on creating your own. [M]aking this installment of the series taught me quite a few things.
With all the talk about going energy independent, making your own electricity is the easiest and most flexible. The great thing is you begin making your own electricity with a solar panel for less than 0 dollars. Isn't that exciting?With all the electricity that you will be creating you will have to decide what you are going to use it for. Now that you are generating your own electricity; you can use it to power your small garage like the lighting, your house, and much more.Here is a great thing that you can do once you are making your own electricity, you can sell it back to the power company to make a small profit for the month. When you are making your own electricity you do not have to even use any power from the utility company, how wonderful is that.The following things you should know about making your own electricity at home:***Do you live in a sunny place? Then you should really user solar energy to make your electricity.***Is it always windy around your house? Then you should consider using a windmill to make electricity.***Have a river near your house or near you with flowing water? Then how about using micro-hydro, sometimes it makes work better than solar and wind combined. ***The best way to generate energy is to use a combination of the power sources.***If your house is connected to a grid line, which is when you have electrical power delivered from a utility company you should consider using a "Grid Tie."***But if you aren't remote or connected to the electrical grid, or want to generate your own power then you should consider a self-contained solution.How to Generate Power with Solar Power:You have to think about the location that you put your solar panels before you start making it. The solar panel should be mounted facing south to the sun exposure, which is north-facing in the Southern Hemisphere, up-facing near the equator. Having clear weather most of the year is helpful, plus light overcast conditions are sometimes beneficial.OK, you have the location but now you need to know about the angle, the angle should be adjusted according to your latitude. They should point straight up at any latitude, but sometimes will lose some efficiency and then you will need to build more solar panels. There is nothing wrong about having a lot of solar panels, the more the better.The fixed mounted solar panels have their own structure which contains housing for batteries and charge controllers. You could place the fixed mounted solar panels on your roof, but you have to remember that it will be harder to mount and maintain.How to Generate Your Own Electricity with Wind Power:***Windmills can be bought pre-packages which might mean they are less expensive then the solar panels***You might need a special charge controller with a "diverter load," which is a big resistor, but can be a 12 or 14 volt electric water heater element.***You need the wind speed in your area to make a windmill work well***Some windmills can be noisy. But not for you since you are making your own and you will have great plans that will tell you how to build them correctly***Everyone will be able to see it, which might be an "eyesore" to some people***Sometimes you will have birds that will kind of not make it though the wind blades, but no worry you can always clean the (if you want too)You need desolated areas where the wind is consistent plus with very few things blocking it like trees or high building. Wind power supplements solar power at night or on cloud days to make energy when your solar panels aren't. ways to save electricity in your home
Servo motors are controlled by pulses of varying lengths. This requires fairly accurate timing. The Raspberry Pi has one pin that generates pulses in hardware, without having to rely on the operating system. Occidentalis includes an interface to make use of this pin for controlling a servo motor.
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