How To: Use the Gauss Method to find triangular numbers
The first video is an elementary explanation of triangular numbers and a Gauss demonstration for the sum of the first 100 natural numbers.
Private Solutions Search Results
How To: Turn Just Half of a Purple Liquid Clear with the Photochemical "Two-Faced" Reaction
We've shown you how to make water change color on command, but how about just half of it? What if I told you that you can split a solution right down the middle and make the color disappear from one side, just by shining light on it?
How To: Test for alkaloids with Pepto-Bismol tablet
This video shows you an alternative procedure to bismuth subnitrate, using Pepto-Bismol tablets. You'll learn how to test for alkaloids, similar to a toxicology report. Put on your goggles, for this great home science experiment.
How To: Clean a penny using vinegar and salt
In this video, Do It Your Self Central demonstrates to viewers how to clean a dirty penny by using common household products, namely vinegar and iodized salt. He suggests to put 1/2 cup vinegar and 2 teaspoons of iodized salt into a cup. This solution will be used to clean the penny. He demonstrates the power of the solution by holding the penny into the mixture for a few seconds. After only a short time, he shows the dramatic change between the portion that was dipped in the solution and the...
News: Here's Why You Should Be Using Private DNS on Your Phone
Nearly every connection to the internet is dependent on the Domain Name System. DNS, as it's more commonly called, translates domain names like gadgethacks.com into IP addresses, which is what network devices use to route data. The problem with DNS servers is that they don't have your privacy in mind.
News: Visualix AR Cloud Platform Looks to Give Enterprises the Ability to Virtually Map Their Facilities
A new augmented reality cloud platform from German startup Visualix is working to give enterprises the capability to scan their own warehouses, factories, and stores and create maps for augmented reality navigation.
How To: Hack Someone's "Private" Friends List on Facebook to See All of Their Friends
Whether you're a celebrity or someone with something to hide, Facebook allows you to keep your "friends list" private so you can protect the identities of your Facebook friends. But it only kind of protects them.
How To: Cover a cake in minutes
Kate Hemmings on The Crafts Channel shows that covering a cake isn't as tricky as you may think. You will need a type of icing that rolls out, such as fondant icing. Ideally, you will want to have fondant icing with glycerine, and so the Pettinice brand is excellent in this case. If you use this icing, you will not encounter problems with cracking of the icing when you try to shape it over the cake.
How To: Rinse Volumetric Glassware in the Chemistry Lab
Find out how everything in a chemistry lab works, from pipettes to burners to recrystallization to storage. You'll get precise instructions on how to work and perform certain scientific duties in the chem lab, whether it's chemical or just ordinary high school science.
How To: Boost in Modern Warfare 2, the easy way
This video shows the viewer how to boost, gain XP very easily, on ‘Call of Duty: Modern Warfare 2’. The first stage is to get a friend to join your game. Then search for the Team Tactical game mode until domination appears. Then back out and go to a private match. Change your clan tag to ‘aaaa’ and hover over Ground War until the game starts. The map usually used for this is Rust as it is so small. The game will behave like a private match but you will be gain XP for all kills. This g...
News: Talespin Raises $15 Million from HTC & Cornerstone to Build AR & VR Training Solutions
While the rest of the world is scrambling to figure out how to adopt augmented reality and VR tools for remote meetings, one company is building its war chest to serve the growing space of corporate clients who need this kind of immersive computing training.
News: Valeo R&D VP Guillaume Devauchelle on Why Waymo Can't Go It Alone
Self-driving car models and fleets get most of the media attention, but it is the suppliers that design and make the technologies underpinning the driverless revolution, says Guillaume Devauchelle, the vice president of innovation and scientific development for leading tier-one supplier Valeo.
How To: Easily Close All Safari Tabs at Once in iOS 7 for iPhone & iPad
Closing all of your tabs open in Safari is not an exceptionally quick task—you have the choice of either tapping the X on the left edge of each page or swiping each tab to the left of the screen. If you have a load of tabs open, you'll have to swipe or tap through all of them. Instead of wasting time, I'm going to show you the quick way of closing all of the open tabs in Safari.
How To: Make a Virtual Private Network
Stay secure on public wireless networks by making your own FREE virtual private network (VPN). This tutorial shows you how to set up an OpenVPN server and connect to it from your laptop.
How To: Clear Browsing History and Cache in Firefox and IE
In this video, we learn how to clear browsing history and cache in Firefox and Internet Explorer. First, while in Firefox, go to the tools menu, then click on clear private data. In the new window, click on the items that you want to have cleared, then click "clear private data now". After this, the computer will clear out all the internet files. Next, while you're in Internet Explorer, go to the tools menu, then click on "internet options". Once in here, click the appropriate sections to cle...
How To: Barrier breaker glitch out of any map in Call of Duty Black Ops
There aren't a lot of games with 3D maps where you can't break out of the levels in some way, and Black Ops is not different. This video will teach you a barrier breaker that you can use to get out of every multiplayer map in the game. Only use this in private matches unless you want it to go away!
How To: Make hydrazine sulfate with the hypochlorite and the Ketazine process
Hydrazine sulfate has many uses, but most notably, it's been used under the trade name of Sehydrin, a treatment for anorexia, cachexia and some even think cancer. But for we DIY chemists, it's useful for something entirely different— as a substitute for the more dangerous pure liquid hydrazine in chemical reactions. NurdRage shows you how to make it via some hypochlorite and the Ketazine process.
How To: Fix any reception issues with your iPhone 4G HD
So.. you spent 200, 300 or even 600 bucks on your new iPhone and now you have no reception! It seems as though Apple was so busy developing cool new apps for it's latest creation that it forgot about the fact that its.. oh right.. also a PHONE. If your new iPhone 4 cuts out every time you hold it, check out this clip. This tutorial will offer some awesome tips and speedy solutions to this annoying problem. So, if you are about to run up to Cupertino and tell Steve Jobs where he can stuff his ...
How To: Stop a video from showing up in YouTube's search index
Ever wish there were a way to upload a video to YouTube without making it available to anyone with an Internet connection? While you might know about the option to make your uploaded clips private, limiting their viewing to 25 users of your choosing, you might not know about the newly introduced "Unlisted" status, which allows your videos to be viewed by only those people who know the video's direct URL. For more information, watch this free video guide from Tekzilla.
How To: Make cheap homemade cleaning solution for your PC
Are you sick of spending a ton of money on not so great cleaning supplies? Well, if cleaning the screens around your home are the problem, check out this tutorial. In this video you will learn how to make a super effective cleaning solution for your TV, PC, laptop, iPod screens, etc for about a dollar! This couldn't be easier to do, and your screens will be clear and shiny in no time.
How To: Safely clean an LCD screen
This video answers the question, how do you safely clean an LCD? Remember that LCD’s do not have glass so you have to be careful how much pressure you apply, as well as the kind of cloth you are using, or you can damage or scratch the screen.
How To: Make "hot ice"
In this video tutorial, viewers learn how to make "hot ice". Users will need sodium acetate. Begin by putting the sodium acetate into a pan. Add a small amount water to the sodium acetate. Heat the mixture on a stove until the sodium acetate has dissolved. Pour the solution into a container. Do not pour in any undissolved crystals. Put the container into the freezer or refrigerator for a while. When the solution cools down to room temperature, take it out. Touch the sodium acetate and it will...
How To: Calculate molecular formula using molar mass
The man was requested to solve a short, basic chemistry exercise. He starts by explaining the meaning of the terms involved in the problem: molecular mass, empirical formula and molecular formula. He also explains the way the are connected, for a better understanding of the way the exercise is solved.
How To: Make manganese dioxide electrodes
Various electrochemical reactions requires that anodes do not degrade when used. Carbon is cheap, but degrades easily and platinum is extremely expensive. In a previous video, you learned "How to make cobalt and manganese nitrates", and you saw that titanium could be used as a cathode, but not as an anode due to an effect called passivation.
How To: Wash windows the easy way
Ron Hazelton shows you an easy an effective way to wash windows. In a warm bucket of water you add one tablespoon of dishwashing solution, a scrubber with sleeve is used to apply the solution to the window, and dried with a professional quality squeegee. Each step is shown and explained in full detail to ensure the best possible completed outcome. After watching this video and walking yourself through the steps a few times you can wash a good sized window in about a minute.
How To: Make aluminum nitrate nonahydrate
Aluminum nitrate nonahydrate is a crystalline hydrate - a salt of aluminum and nitric acid - Al(NO3)3·9H2O. It's used for a variety of things such as antiperspirants, corrosion inhibitors, and petroleum refining, or… glow-in-the-dark powder. Watch this science video tutorial from Nurd Rage on how to make aluminum nitrate nonahydrate with Dr. Lithium.
How To: Make hot ice using Sodium Acetate Trihydrate
This video in the Education category will show you how to make hot ice using Sodium Acetate Trihydrate. For this purpose you will need a pan, 100g of Sodium Acetate Trihydrate, 25ml of water, a wooden spoon and a glass. Take the Sodium Acetate Trihydrate and put 100g in the pan. Then place the pan on a stove and turn to medium heat. The Sodium Acetate Trihydrate will start to melt. In about five minutes when it has melted fully, add 25ml of water. Let the solution simmer for two minutes while...
How To: Record a screencast in Linux
From brute force hardware-based solutions like pointing a camcorder at your monitor to more elegant, software-based solutions like (the free and open source) Xvidcap, there are no shortage of ways to create a screencast while running Linux. In this how-to from Linux Journal Online, Shawn Powers offers a comparative look at many of the most popular techniques employed by Linux users.
How To: Make a homemade green cleaning solution
Want a green, clean home but are wary of mass-manufactured cleaning products? In this tutorial, you'll learn to create a simple, green cleaner using a baking soda and vinegar solution, which, beyond being environmentally friendly, is a lot of fun.
How To: Choose external drive options for Final Cut Pro
Larry Jordan explains the advantages and trade-offs of various external drive solutions, compares data rates or FireWire drives vs. SATA drives, what solutions work the best and how to avoid clogging your Final Cut Pro workflow.
How To: Open a New Private Tab in iOS 15's Updated Safari Design
When you open Safari for the first time after updating to iOS 15, you'll instantly notice its search bar is now at the bottom, and its Page Settings menu has moved with it. For tabs, moving between them is as easy as swiping on the Tab Bar or selecting one from the new grid view, but you may get confused whenever it's time to open a private window.
Hacking Windows 10: How to Use SSH Tunnels to Forward Requests & Hack Remote Routers
Without admin privileges, installing additional software, or modifying the Windows 10 firewall, an attacker can alter a router and perform a variety of exploits. It's accomplished by forwarding requests from Kali through a backdoored Windows computer to the router gateway with simple SSH tunnels.
How To: Make Your TikTok Account Private (So Creeps Can't Lurk or Comment on Your Videos)
Can you trust every user you come across on TikTok? The answer to that may depend on how use the service, but the real question is — can you trust every user that sees your content? Not everyone on TikTok is someone you want viewing or interacting with your content, and there's a way to prevent them from doing so.
Market Reality: Who Are the Most Active Investors in AR/VR?
While many analysts predict that the market for augmented and virtual reality will continue to grow over the next five years, now is the time for investors to get in on the ground floor.
News: Jaguar Land Rover Leans Towards Driverless Fleets in $25 Million Deal with Lyft
The $25 million development alliance Jaguar Land Rover's mobility unit InMotion has formed with US-based ride-share firm Lyft reflects how the British luxury carmaker is leaning towards a fleet service business model for its driverless offerings.
How To: Remove Watermarks from Wooden Surfaces
Everyone has those watermarks when you forgot to use a coaster but the solution is easy!! Here is a little step by step guide and a little video that might help - let me know what you think!
How To: Make Your Own Makeup Remover Wipes Using Oil, Water, & Paper Towels
For me, the worst thing about makeup has always been taking it off. It's always that one last thing you have to do before you go to bed, and if you don't, you instantly regret it when you wake up. When you're tired, makeup removing wipes are a godsend because they're so quick.
How To: Lock Folder Without Any Software with Password
You can easily lock any folder on your Windows computer with a simple Notepad hack. By creating a batch file, you can hide a folder and require a password be entered before it becomes visible and accessible. This is a great tool for locking sensitive information, like pictures, financial statements, and a lot more.
How To: Import Private Keys to Bitcoin Wallet (Windows)
I've noticed that a few people using the crypto-currency, Bitcoin are having issues importing private keys to their Bitcoin wallet. This is easy to do and doesn't require anything other than your Bitcoin client/daemon (as of ver0.6.0 ) and the command line.
How To: Make your wireless network secure
In this tutorial, Brian teaches us how to make your wireless network secure. First, go to the start menu, then go to run and type in "cmd", then type in "iconfig /all". Now a new window will pop up and you will look for the default gateway. Find the IP address to log onto the routers you have. Now, type in your IP address into your address bar on your internet browser. You will be asked to log into your account with your password and user name, which you can find at the manufacturers website....