Scientists know that bacteria create their own energy, get nutrients to run their cellular processes, and multiply. But, bacteria haven't been shown to respond to external mechanical stimulation or signals in a way that's similar to how our bodies respond to touch, until now.
Tech-savvy programmers and developers usually apply their unique talents exclusively to creating apps and websites — two high-paying and exciting pursuits that can open countless doors and opportunities in multiple fields.
There's no charge for this electricity! All you'll need for this project is... Now, watch and learn how to make your own emergency power if you find yourself in a bind.
Watch this science video tutorial from Nurd Rage on how to lower electrical resistance with liquid nitrogen with Dr. Lithium.
The Solar Schoolhouse presents this video tutorial on how to use the Solar Cell Classroom Set. The purpose of this set is to give students hands on experience making electricity using sunlight. See what's inside the set, and then see how to wire three different types of electrical circuits: a simple circuit, a series circuit, and finally a parallel circuit.
This video aimed at electricians, is designed to help employers and employees what is required in the standard that is applied for the control of energy during maintenance and servicing of equipment and machinery. Employers are required by law to develop proper lockout safety procedures and provide proper protection materials and safety training. This video is highly important for any electrician, apprentice or journeyman, because it will help prevent injury… or even death.
Installing an electrical outlet in your home or apartment may seem like a daunting task, but this simple DIY video from Buildipedia makes it a simple project. Whether your current outlet is broken, or you're just looking to add something new this video will show you how it's done.
Being able to read an electrical diagram will greatly aide your ability to correctly diagnose car problems. If you need some help with it, watch this video for a detailed explanation of how to read an example map for the clutch start switch on a Toyota.
The continuity test is one of the least well-known but useful functions on a multi-meter. It allow you to determine whether a fuse works by touching the contacts to it, which allows you to diagnose all sorts of electrical problems. This video will show you how continuity tests work and give you some examples of using them to find problems in household devices like a lawnmower.
Make a lighter with one or two AA batteries and simple tiny wire!!! This is a fantastic homemade electrical lighter for any situation. You'll need two AA batteries, a push switch, a battery holder, wire, solder, soldering iron, electrical tape, crimper, and scissors for this cool electrical lighter, for your cigarettes, and such.
Home repairs might seem foreign to some people, but it's not as hard as dealing with contractors. If you have to patch up some holes in your drywall but don't know how, let this video series be your guide. In these videos, lean how to patch around an electrical box on drywall.
The first video introduces the basic electrical quantities of charge, current, voltage, and resistance. The concept of quantities and units is explained. The units of Coulombs, Volts, Amperes, and Ohms are described. The three basic formulas of Ohm's Law (E=IR, I=E/R and R=E/I) are also introduced.
Electrical sockets are often taken for granted. It's not until one of them breaks or stops working and our laptops won't turn on that we truly have a crisis (mostly over lost internet time).
This video is about electrical wires. It describes common types, configurations of wire, and wire terminology. It explain the gauge system of rating wire size (diameter), circular mils, current capacity, and others.
Here's how to remember what wires go where when wiring a plug in the United Kingdom. UK plugs have two or three wires going into them: brown, blue and yellow-green. L in the blue tells you it goes on the left. The R on the brown tells you it goes on the right. If there's a yellow-green one it's the ground or earth.
This video describes Resistor Color Codes and how to read them. It relates Resistor Color Codes to scientific numbers and engineering notation.
This video introduces the concept of an electric circuit and how electrons flow through the wire. It describes the difference between an open and closed circuit, and the importance of continuity.
When it rains, it pours. If all sorts of electrical systems on your car have seemed to break at once with no relation to each other, they might actually be related. Watch this video to learn how multiple electrical problems in a car can often be traced to one source and fixed, saving time and money.
Replacing a switch is a project almost anyone can tackle. In this how-to video, discover the right questions to ask to ensure you purchase the right switch for your needs. Then, learn the simple steps for installing your electrical switch or dimmer. Watch this video home improvement tutorial and learn how to replace electrical switch.
Electical discharge machining is a techinque in which electricity is used to machine (cut, grind, etc.) metal. It usually invovles sophisticated tools and equipment, but not here! Watch this video for a guide to making a small electrical discharge machining machine with an old electric doorbell.
This video introduces the formulae for watts in an electric circuit, P=IxE, P=I^R, and P=E^/R. It also explains how P=I^R and P=E^/R are algebraically derived from P=IxE and Ohm's Law.
Jon Olson shows us how to replace an electrical outlet and how to replace a wall switch as well as some other electrical tips you can use around the home.
Electricity can be conducted through a variety of unexpected mediums, including Jell-O, lemons and potatoes. Learn more about electric circuit experiments in this free science experiment video from a professional audio engineer and instrument builder.
In the first video, it introduces the principles and terminology of mechanical electrical switches. It covers terms such as contacts, normally open, normally closed, poles, and throws.
Electrical diagrams are hard to read for all but the most mechanically-inclined, and the ones for the power windows on cars are notoriously complicated. This three-part video will teach you how to read these diagrams and make sense of what you see.
In this tutorial, we learn how to wire a three-way electrical switch. First, you will need to know the difference between the wires that you are using. Once you familiarize yourself with these different wires, you can start to wire your electrical switch. Now, go to your electrical box and tie the white wires together with an electrical nut. Next, tie the copper wires together and you will be left with three wires. Take the wire that supplies the power and attach it to the black common, then ...
Your car's electrical system is massive and complicated. Trying to find a short in the system might sound like a job for a professional, but in this video you will learn how you can use an $8 test light to locate a shorts in your car's electrical system. It will also teach you how to fix it if the problem is the cigarette lighter, now more commonly known as the 12 volt plug.
This how to video shows you how to test electrical receptacles. The video covers 5 simple test rules. The first test is to simply attach an electrical device to the socket. The video also suggests the use of market product testers and even voltage testers. This video is perfect for people who are having electrical problems or are just beginning to learn how to take care and maintain their own home. The video is about a minuet and a half long.
This is a guided hands-on laboratory activity to help a student understand the proper and safe use of a multimeter to measure electrical resistance. These two video guides the student through the proper techniques for measuring resistance with a multimeter, but you'll need some assorted resistors, a rectifying diode, a photo cell, an electronic labs kit, and some other stuff.
In this video we learn how to replace an electrical light switch. First, turn the power off in your home. Then, remove the screws around the switch exposing the wires. Confirm that they are dead with a tester, then you can get started removing. Wrap electrical tape around the wires and then label them with what they were connected to. Tear this out of the terminals, then replace the new one with the wires hanging out. Make sure you place the wires back into the same terminals as before, using...
This is a video tutorial in the Home & Garden category where you are going to learn how to use an electrical box extension. Bob Schmidt shows how to use an electrical box extension during remodeling; when adding drywall, tile or wood over existing surfaces. For this you will need a PVC box extension which is designed to fit over the box that is already embedded in the wall. It extends out of the wall which will be covered by the layer of tile or drywall. Disconnect the power source to the plu...
If for any reason you need to replace or add a circuit breaker to your electrical panel, you'll need to know how to do so. Luckily for you, this tutorial is here to help.
In this video tutorial, viewers learn how to properly inspect an electrical panel or circuit breaker in a house. Users should begin by taking off the cover(s) of the individual panels to see the wiring inside. Make sure the wire are connected and that there are no open or broken circuits. Users should look correlation of the circuit breaker size and the wire size to make sure the gauge of the wire can handle amp and heat that is generated. This video will benefit those viewers who want to lea...
The Type G plug is the standard plug in the United Kingdom, usually 230V and 50Hz, and is referred to as the BS1363 (British Standards 1363). It's most commonly referred to as the "13-amp plug" because it has a 13-amp fuse inside. The wires consist of a hot (or live) wire, neutral wire, and an earth (or ground) wire.
The alternator on your car is arguably the most important part of the electrical system, and if they break even a little weird things can start happening all over your car. Watch this video to learn how to check an alternator and make sure it's working properly.
Measuring the amperage, or number of amps, in an electrical circuit requires a tool called a multi-meter. They are somewhat difficult to use, but fortunately for you this video explains in great detail how multi-meters work and what you need to do to ensure that they work. The creator tests the amperage of a power drill batter as an example.
There's more than one way to test a fuse, and it doesn't have to be expensive. In this video tutorial, see how to test an electrical fuse with a screwdriver tester or multi-meter. A test screwdriver is relatively cheap and simple to use. A multimeter is a little more expensive and a little more complicated, but once you get used to it, fairly simple.
If your old outlet has become so loose that a cord barely stays in place, it's time to change it. It's not just an annoyance—it's a hazard. Learn how to replace an electrical outlet with this instructional video from Howcast.
While one can achieve a number of realistic vintage keyboard sounds through sample libraries like the Reason Abbey Road Keyboards refill, there's no beating the genuine article. If you find a vintage keyboard, however, it may need any number of repairs to get it sounding like it should. In this how-to, you'll learn a few quick tips for getting rid of electrical hum on a Wurlitzer 200 Electric Piano. Take a look!
This tutorial shows you how to create wire types in AutoCAD Electrical 2008.
