This video is a discourse about saltatory conduction in the neurons. According to the author, it begins with the opening of a gate on the membrane of one of the dendrites of a neuron, and positive charge enters through this gate. The positive charge spreads throughout the cell, and gets dissipated as it spreads, so that, by the time it reaches the Axon hillock of the neuron, it is left with very little potential. However, the potential which results from the simultaneous excitement of many de...
This makeup style is perfect for an Indian wedding or for a Bollywood style costume party. Watch this instructional cosemtics video to apply flashy Indian eye makeup.
We are now in the age of 5G. Carriers worldwide are upgrading their networks to the newest standard for mobile, which will dramatically improve your phone experience. How? By giving it download speeds and latency that surpass Wi-Fi. But before you upgrade, there are few things you should know first.
In our first part on software-defined radio and signals intelligence, we learned how to set up a radio listening station to find and decode hidden radio signals — just like the hackers who triggered the emergency siren system in Dallas, Texas, probably did. Now that we can hear in the radio spectrum, it's time to explore the possibilities of broadcasting in a radio-connected world.
On April 7, 2017, residents in Dallas, Texas, woke to the sound of emergency sirens blaring all over the city. No one could shut them off, and after repeated efforts to contain the situation, the city had to shut down the entire system. While the media reported a sophisticated computer hack was responsible, the truth was much less high-tech.
Google's new Project Fi cellular carrier has been making waves across the mobile industry, so we decided to put it to the test against T-Mobile, one of the more established networks. For the actual testing, we slapped a SIM card from each carrier into two identical Pixel XL phones, which offer full compatibility with both networks.
Radio communication is one of the oldest and most effective means of communication via technology, so it's no wonder it's still a popular way to send and receiver signals, especially on the water. Having a Marine radio can be critical when operating a boat on any type of water. There are many uses for a Marine radio, but the most important is to send a distress signal — here’s how to do it.
While Magic Leap World gets its share of fun apps for playing with Porgs, watching TV, and exploring the ocean's depths, developers are making a strong business case for the Magic Leap One as well.
Smartphones are still "phones," which means communicating with others is usually a primary use. Ranging from a simple "hi" to a more personal conversation and even sharing passwords, our messages should remain private so that only the intended recipient sees their content. While many apps tout end-to-end encryption, not all apps prioritize security and privacy.
If the all the fingerlike projections in our gut were flattened out, its surface area would be 100 times bigger than our skin's. It's so large that the actions of just a small part of it can impact our health. A new research study has found that enterochromaffin cells in the intestinal lining alert the nervous system to signs of trouble in the gut — trouble that ranges from bacterial products to inflammatory food molecules.
Lighthouses and signal fires may have been the first social media. Without the ability to share language, a distant light meant "humans here." A new study from the University of California, San Diego, finds that bacteria can also send out a universal sign to attract the attention of their own, and other bacterial species.
When exercising at a high intensity, you know to expect some level of pain. That can make it difficult to identify when your body gives you a warning sign of injury. If you pay close attention, however, you can tell the good hurt from the bad. I talked to Dr. Brian Parr again, professor at the Dept. of Exercise and Sports Science at the University of South Carolina Aiken, who explained which symptoms of exercise are normal and which are bad:
Leaving your Wi-Fi radio "on" allows your smartphone to auto-connect to trusted wireless networks in lieu of using cellular data, but it also consumes battery power while it's constantly network hunting.
Having trouble getting a strong Wi-Fi signal on your Samsung Galaxy S3? Does the signal drop out on you when changing rooms? Frustrating, isn't it?
In this video, you'll get a step by step tutorial on redeeming your free iPhone 4 case. If you have an iPhone 4, you are entitled to a free bumper case to deal with the antenna signal loss problem. All you have to do is download the iPhone 4 Case app, and send in your information. There's nothing to it! Get your free iPhone 4 bumper case today!
Nobody likes having bad breath. Not only does it leave you with a bad taste and scare away potential suitors, it can be a signal of more serious dental issues. This helpful video from Colgate offers up some tips you can use to cure your bad breath and improve your overall health.
This tutorial shows you how to replace a rear light on a 2003 Ford Focus. Specifically, the video shows fixing the rear brake light, but this tutorial shows how to fix any rear light (including brake/tail, reverse, and turn signal lights). It is very simple and does not necessarily require any tools at all, though a pair of pliers comes in hand. Give me a break! Better yet, give me a working brake light on my 2003 Ford Focus! OK, if that's what you want, this video is going to show you how to...
5G is undoubtedly the future of mobile networks, and there's a good chance your next phone will have it. But just like with 4G, as carriers race to get the best 5G coverage, the ones running behind are abusing marketing terms to make themselves seem further ahead than they actually are.
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.
Now this is a DIY microphone. It turns out all you need to make a quasi-functional mic is a pair of razor blades, a pencil, some tupperware, and clips to run the signal from the razor blades to a resistor. Watch this video to learn how to make this awesome DIY mic and never find yourself silenced again.
If you're looking to not only root your new Motorola Droid X smartphone, but tether it wirelessly, then this video tutorial will show you the steps. Follow along closely and download the root files (.ZIP). And if you succeed, your Verizon Wireless Droid X will be fully rooted and you can tether your signal wirelessly to computers.
This is a Step-by-step video tutorial showing you how to use the Fruity Loops Vocoder in FL Studio. Learn the principles of the Vocoder and how to use the modulator and the carrier and route the signals to the vocoder in FL Studio.
Check out this instructional kickboxing video that demonstrates how to hook in kickboxing. The hook is a powerful kickboxing punch. Learn the skills of kickboxing in this video on competitive kickboxing moves.
This music production software tutorial demonstrates the use of an Audio Delay to create an effective CV delay, with some tweaking in Reason. CV delays are useful for instrument design and combinator construction. Learn how to delay control voltage outputs in this Reason video.
When you meet a dog, the first thing you do is pet the head and the dog likes it, right? Wrong. Most dogs don't like being pet on the head, even if you think they do, and they're constantly sending signals that they don't want to get a head patting. Learn how to read a dog's body language to find out whether or not they want to be pet on the head by watching this instructional video.
Have you ever broken the antenna off of your cell phone but did not want to buy another one? Here is a quick, cheap way to repair your antenna. This method also helps to improve bad reception on existing antennas.
This video will show you how-to hack Bluetooth on your iPhone with an app called BlueSn0W. You'll need a jailbroken Apple device to begin with, so make sure that step is done first. After that you'll be able to hop on someone else's signal.
In this clip, you'll learn how to boost your WiFi signal strength by building a wireless repeater from an old WiFi router. It's an easy process and this video presents a complete guide. For more information, including a full demonstration and detailed, step-by-step instructions, watch this helpful home-computing how-to.
The United States Postal Service (USPS) use what's called a Grumman Long Life Vehicle, or LLV, for their postal trucks. This video will show you how to troubleshoot the dash gauges in an LLV that are acting crazy. If you;re a mechanic and you have the same sort of electrical problem with the gauges when using turn signals or hazards, this video will help you find the solution, which could involve the parking brake.
This video will explain the basics of how to ride a motorcycle by showing you the basic controls of a motorcycle: clutch, lights, turn signals, gears, brakes, horn and more. If you are learning how to ride a motorcycle, using the basic controls is the place you want to start.
Get bent with this instructional circuit bending video that provides a short introduction to circuit bending for the beginner. Circuit bending is taking any existing electronic device that is capable of generating audio signal and manipulating it and altering the schematics to produce some sort of sound other than the original intended sound. There are endless possibilities for the devices that can be used to experiment with your own circuit bend sounds.
Wondering how to use an old-timey oscilloscope? Learn how with this video tutorial, which offers step-by-step instructions on setting up and adjusting an old cathode ray tube oscilloscope for the measurment of signals. For more information, or to get started using your own oscilloscope, take a look.
This instructional recording video will show you how to record the acoustic guitar in mono, using 2 different microphones in 2 different positions. It also shows you a few simple steps on how to make a stereo signal from a mono recording. Record better sound quality and learn how to record the acoustic guitar with one microphone by watching this tutorial video.
Falconry is the art of hunting with a bird of prey. The British School of Falconry at Equinox in Manchester, Vermont shows how to handle eagles and other birds of prey. Birds are trained to respond to human signals and people are taught the correct procedure for interacting with these hunting birds. Learn how to handle a bird of prey by watching this instructional video.
Are you tired of having spills from overflowing sinks and bath tubs? Watch this video tutorial to learn how to make a water level detector. To make this detector, you will need: 2 wires, a sound signal from a toy, and a drill.
This is a video tutorial on how to set up a very simple foil parabola to increase your wireless signal at your home.
This video tutorial demonstrates a simple hack for improving the WiFi reception of a USB adapter. To replicate this hack yourself, you'll need the following materials: (1) a WiFi USB adapter, (2) a USB extension cable, (3) a metal strainer, and (4) a pair of scissors. For detailed, step-by-step instructions on improving your WiFi adapter's signal levels, watch this how-to video.
Watch this video from Tekzilla to boost the range of your cellphone, learn how to make your own stencils, put Pownce on the Desktop, and switch to HDMI for low cost.
Oscilloscopes visualize electronic signals. This information can be useful for tests, debugging, and reverse engineering. If you work with electronic circuitry, being able to use an oscilloscope is a must have skill. Here Bre Pettis and Make Magazine hook you up with great tips.
If you're a beta tester, you know Apple released iOS 13.3 this week, bringing with it stability for multitasking as well as minor changes throughout the OS. It seems Apple doesn't want the rest of us to go without this critical patch, as the company releases iOS 13.2.2 today, Thursday, Nov. 7.
