Like a lemon, a potato can produce electricity. This science experiment was prepared by Ebtisam Al Anzoor and demonstrated by Mustafa Daif. The electricity is proven using an analog micro ameter. The positive is copper from a penny or copper coin while the negative is a galavanized nail. The potato releases a charge and is further proven when it is connected to a calculator. You can daisy chain the potatoes for a greater charge.
Take a look at this instructional video and learn how to use the line tool in Google SketchUp. There are two ways to draw edges with the line tool. The first method is to simply click your mouse at various points around the screen to draw connected edges in succession. The second way is by clicking and dragging the mouse button to draw an edge, and release the mouse button to create the edge. This tutorial covers the best practices for drawing lines or edges, how to draw accurately, and divid...
This is a video tutorial on how to make a USB aquarium powered by a under-gravel LED bulb that is powered by a USB port. With a bit of simple engineering, build a circuit to provide elegant lighting to your aquarium. Connect the wiring to the air pump for a cool lighted bubble effect. Plus, it's powered by your computer! Don't use expensive fish, or those which are sensitive to DC Currents. Don't do this project in a saline water tank, because salt conducts more electricity.
This pilates how-to video illustrates the Obliques Roll Back exercise. This is a challenging rotational pilates exercise for athletes and advanced clients.
In this video tutorial, Chris Pels will show how to create event handlers for ASP.NET web pages and web server controls. First, learn how to create page level events for the standard page events provided by the .NET Framework. See how to automatically bind the events to a page using the AutoEventWireup attribute as well as programmatically bind the events. Next, learn how to create and bind event handlers for the standard web server control events. Also learn how to connect multiple events fo...
In this video tutorial, Chris Pels will show how to deploy a web site using the Copy Web Site Tool in Visual Studio. First see how to connect to a remote web site and deploy an entire site to the target location. Next, learn how to synchronize an entire source and target web site. In addition, see how to copy and synchronize individual or groups of files including how the Copy Web Site tool provides status indicators of differences between files. As part of this process see how the tool provi...
Check out this two-part 3ds Max video tutorial which exploits a little known capability of Max to create a head. You'll find this technique easier than box modeling for heads since your topology and edge flow are there from the beginning. With box modeling, there's a lot of division, connecting, turning, etc. to get basic topology in place.
This is a tutorial that shows you how to view and control your computer screen from your iPhone/iPod Touch. But this method is for people who have a jailbroken iPhone/iPod Touch. This works on Edge and Wifi. If you are having problems connecting try going to control panel then security center then turn your firewall off. Also try turning off anything like virus protection.
A closed urinary drainage system consists of a catheter inserted into the urinary bladder and connected via tubing to a drainage bag. The catheter is retained in the bladder by an inflated balloon. The drainage of urine is totally dependent on gravity. Therefore, tubing and the drainage bag, to collect urine, must always be below the level of the bladde.
First buy a cheap rc buggy, then a cheap wireless camera and receiver off ebay. Then buy a usb TV box and plug it into your laptop. Connect receiver to tv box. Tape camera to car. Switch everything on and drive! My other camera has packed up and I can't see anything through the viewfinder or screen. That's why the filming is so bad.
To make a glowing ice bulb, like the one in this how-to video, you need LEDs, batteries, wire, a balloon, and electrical tape. First, you connect the led to the wires. Then, you put the LED in the balloon, fill the balloon with water and freeze it. Once frozen, remove the balloon and attach batteries. Watch this video tutorial and learn how to make a glowing ice bulb from a balloon.
Garden of Imagination demonstrates how to make a real working miniature chandelier light for a doll house. We need some cord wires, beads, an electric bulb of 12 volt and plugs.
There's a lot of great features in Entourage 2008 for Mac, and one of the new features in "My Day". It's a small integrated app that helps you stay organized and helps you manage all of your upcoming events and tasks. The Microsoft Office for Mac team shows you just how to manage tasks and events by using My Day in this how-to video.
Pokemon's Darkrai is one of the most coveted levels of the game. With this tutorial, learn how to find Darkrai in a few easy steps, as well as secure a Membership Pass and a Mystery Gift in Pokemon Platinum. So grab your Nintendo DS and follow along!
Whenever your iPhone's ringer is on, you'll hear Apple's iconic "Connect Power" chime every time you connect it to a wired or wireless power source, which lets you know that charging has started. There's no way to disable the sound without turning on Silent mode, but there is a way to make Siri automatically say whatever you want after a successful connection.
The draw of wireless earbuds is convenience, and many still offer the same sound performance as their wired counterparts. The difficult part is finding a pair that will stay in your ear reliably, work when you need them, and give you the best audio quality.
Apple's AirPods are convenient because you can easily switch which Apple device is connected to your AirPods with just a few taps. But unless you're using Shortcuts to make the connection, you aren't using the fastest method possible.
The 280-character limit for tweets on Twitter is double what it used to be back in the day, but it's still not enough to express in-depth thoughts, ideas, commentary, rants, blogs, stories, and the like. These tweetstorms, as they're called, are the reason why Twitter created its threads feature.
PayPal is one of the most popular payment systems across the globe. It makes payments fast, easy, and secure, and with 250+ million users, it's not going anywhere. If you're new to the online service, one of the first things you should learn is how to add your bank account, credit card, or debit card to PayPal, and make your life easier when it comes to online payments and withdrawals.
Semi-untethered jailbreaks are here to stay, as evidenced by iOS 11's Electra method, Chimera for iOS 12, and even the new bootrom-based Checkra1n tool for iOS 13. While not as convenient as fully untethered, re-enabling a semi-untethered jailbreak is still pretty easy once you get used to the steps involved.
If you want to carry a variety of network adapters without looking suspicious, a perfect solution is accessing them through Airserv-ng. Tucked away in the Aircrack-ng suite, this tool allows a hacker to plug any number of network adapters into a Raspberry Pi and access them over a Wi-Fi or Ethernet connection.
For the first time, you can officially use a computer mouse with your iPhone, thanks to Apple's new Accessibility settings in iOS 13. It works for all types of Bluetooth mice, so if you have one, it'll already work. Plus, those with wireless receivers and even wired mice are supported by using a USB to Lightning adapter.
Everyone from first responders to hotel cleaning staff use radios operating in the sub-megahertz range to communicate, often without even encoding the transmission. While encoding and encryption are increasingly used in radio communication, an RTL-SDR adapter and smartphone are all it takes to start listening in on radio conversations happening around you.
The march towards mainstream adoption of eSIM technology got a massive boost with the arrival of the iPhone XS, XS Max, and XR. We're now one step closer to ditching physical SIM cards altogether. If you're on the fence about this new technology, you may be surprised by the benefits it brings to the table.
Fortnite's long awaited arrival on Android has ramped up excitement among gamers who are installing the beta version in astounding numbers. With so many midrange and budget devices running Android, however, it's important to stay on top of your device's performance to ensure smooth and uninterrupted gameplay.
After backdooring a MacBook not protected by FileVault or using a fake PDF to gain remote access, an attacker may wish to upgrade their Netcat shell to something more fully featured. While a root shell allows attackers to remotely modify most files on the MacBook, Empire features some useful post-exploitation modules which make hacking Macs very easy.
Any internet user will need to download files eventually, and most simply have faith that what they are downloading is trustworthy. This doesn't give much clarity into the contents of the file, but if the file's author published the original checksum, comparing it to the SHA-256 hash of the downloaded file can ensure nothing was tampered with.
The threat of an evil access point has been around for a long time, and with the rise of open public Wi-Fi, that threat is often overshadowed by how comfortable we are using third-party Wi-Fi hotspots at coffee shops and public spaces. While we've shown an evil twin attack using the Aircrack-ng suite of tools, MitmAP is a Python tool to configure custom APs for many types of wireless attacks.
Imagine for a moment that a VPN is like putting on a disguise for your computer. This disguise works to change your IP address, secure your traffic with encryption, and mask your location to bypass regional restrictions. This makes it a helpful tool for both whistleblowers and journalists. VPNs are also built into the well-known Tor Browser.
It seems almost every carrier now has an unlimited data plan, and free Wi-Fi is now available in more places than ever before. If you want to be connected, it has never been easier — but that still doesn't mean that everyone can stream as much as they please.
The Raspberry Pi loads an operating system from whatever SD card you insert, allowing you to keep different operating systems on separate SD cards depending on which OS you wish to run. A tool called BerryBoot cuts down on the number of SD cards needed by providing the ability to boot multiple operating systems from a single SD card, similar to Boot Camp for Mac computers.
Earlier this year, Google rolled out the first developer preview build of Android O. The new version added tons of cool features, but the downside was the fact that you needed to use Fastboot to manually install the update if you wanted to try it out. Thankfully, things just got a lot easier.
Deep down inside, Kindle Fires are actually Android tablets — the only trouble is, Amazon has layered so much of a skin on top of it all that you can't normally use Android's main app store, the Google Play Store. The Amazon Appstore, which comes bundled with Kindle Fire devices, only has about 600,000 apps, so it would be great if you could access Google Play's library, which boasts 2.8 million.
The office of your physician, or your local hospital, is where you go when you need medical care. But it could also be where you could pick up a life-threatening infection.
There's an adage that says "Every plan, no matter how great, goes out the window as soon as you're punched in the face." While our lives are (hopefully) not violent, that saying can easily translate to our daily living. That punch in the face can come in various forms, mainly stress-related. It could be a bad day in the office, rush hour traffic, drama in the family, the list goes on.
Apple just showed off iOS 9 and its new features at WWDC 2015, including multitasking support for iPads (finally!), a new Low Power Mode to save battery, local area search and transit directions in Maps, a highly improved "Proactive" Siri, a better Spotlight search, new apps, and so much more.
Welcome back, my greenhorn hackers! In previous Wi-Fi hacking tutorials, I have shown you ways to create an Evil Twin, to DoS a wireless AP, and to crack WEP and WPA2 passwords, but in this tutorial, I will show you something a little bit different.
Arcades have long faded away from popularity, but their legacy is being kept alive thanks to emulators and the avid fans who grew up loading quarters into all of those coin-op games. Although nothing beats an actual arcade environment, my favorite emulator from the early 2000s has found a new home on Android, and with it a second life.
If you're anything like me, every time you travel you end up in a desperate panic for a decent W-Fi connection. Whether you want to post your photos, research the best beaches, or kill time during an overnight layover, a hotel's Wi-Fi quality is of paramount significance in making a reservation.
Apple's grand reveal of iOS 8 at WWDC in San Francisco is still a few days away, but that doesn't mean there isn't any speculation as to what features and enhancements might come packed in the new mobile operating system.
