C For Chemistry delves into the chemistry of science experiments. This chemist knows what he's talking about. These chemistry experiments are not only fun, but very educational for all of those interested in scientific chemical reactions and properties. This video tutorial wi ...more
Watch this science video tutorial from Nurd Rage on how to make a test tube thunderstorm. They show you how to make the thunderstorm in a test tube using alcohol, sulfuric acid and potassium permanganate. WARNING: This experiment is extremely dangerous as it involves corrosiv ...more
This science experiment will show you how to make a storm inside a test tube. This video tutorial will demonstrate the process of making the miniature thunderstorm inside a test tube with just a few common chemicals. All you need for your very own thunder storm is a glass test ...more
Nothing to do this summer? Then spark things up with a little baking soda and some vinegar and make a tiny, working rocket. Best of all—you probably already have most of the materials and ingredients lying around the house. What You'll Need Test tube Three small cardboard tri ...more
It’s called Urophagia—the art of consuming urine. There could be any number of reasons for having the desire to drink your own urine (or somebody else’s). There’s the so-called term “urine therapy,” which uses human urine as an alternative medicine. In urine therapy, or uropat ...more
This article is a guide for making Chainmail Armor from start (simple wire) to finish (a finished chainmail shirt). We will be using the European 4 in 1 weave, as this is the most common weave. This is the weave that you usually see in movies. There are several sections to thi ...more
If you had to answer the following statement, which answer would you choose? Water is: A) Attracted by a magnet B) Repelled by a magnet C) Completely non-magnetic Most would choose "C" - but really, water is slightly repelled by magnets. Watch this science video tutorial fr ...more
Was Napoleon's death really due to stomach cancer, or was it arsenic poisoning? Some scientist believe the latter. Arsenic poisoning was a deadly weapon in that era, because it was undetectable when administered over a long period of time, making murder seem like natural cause ...more
In this video, you'll see how and why wax can be a deadly. This is how it works,When the test tube is submerged in cold water, the glass forms tiny cracks. The Water enters gets into the tube and vaporizes causing a micro explosion. The hot wax is then ejected from the tube qu ...more
Try out this science experiment... watch this video tutorial to learn how to illustrate the scientific concept of conservation of mass. This is purely educational, and not as exciting as some other demonstrations, but this does clearly illustrate the concept of conservation of ...more
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. Watch ...more
This survival cache is made for adventurers who, if lost, may stumble upon this handy little tube and immediately get some food and knowledge of their geographic location. Filled with Nutrigrain bars, Cocoa mix, a BB gun with pellets, and other fun little essentials, this sur ...more
Figuring out exactly where a small leak is in a solid black car tube is tough. That's where the smoke machine comes in. In this video you'll learn how the party staple can help you test an evap line for leaks.
Learn how to tie the nail fishing knot with this knot tying instructional video. The nail knot is a popular and time tested fishing knot to join fly line to leader. Use of a hollow tube instead of a nail makes for easier tying. 1. Lay a nail or hollow tube against the end of a ...more
Watch this video from This Old House to learn how to install an under-sink water filter. Steps: 1 Close the cold-water shut-off valve leading to the kitchen sink. 2 Disconnect the copper cold-water pipe from the supply line that runs up to the faucet. 3 Wrap Teflon tape aroun ...more
Watch this video from This Old House to learn how to repair a pressure assisted toilet. Steps: 1. Turn off water to toilet by closing the shut-off valve. 2. Flush the toilet to empty tank. 3. Disconnect water-supply line from toilet. 4. Unbolt tank and lift it off toilet. 5. ...more
Watch what happens when Coke is mixed with wax. Learn how to do this cool science experiment yourself. Can anyone explain the science behind this??? You will need Coke (diet or regular), a glass test tube, and a candle. Break off a chunk of wax from the candle, put it in the t ...more
Science is most marvelous when it's creating an explosion, even at the tiniest of proportions. In the video below, Daniel Rosenberg from Harvard's Natural Science Lecture Demonstration Services reveals the secret to shooting a cork rocket over twenty meters using a little chem ...more
Learn how to cheat on a test and never get caught again! 1. Gather the required materials: pen, tape, and a scissors. The pen required is a special kind of pen found at any local store. The tube of this pen rotates inside the click at the top. 2. Type up what you'll need for t ...more
A science experiment you can do at home to gather a visible cluster of your own DNA. You need salt, dishwashing liquid, denatured alcohol, measuring tool, spoon, small glass/test tube/vodka glass, magnifying glass. Check your own DNA. Click through to watch this video on trick ...more
Watch to learn how to say the names of things that have to do with school, like books, paper airplanes, and soccer balls, in French. un abecedaire - alphabet book un avion en papier - paper airplane un ballon de foot - soccer ball une boite a compare - pencil box un cahier - w ...more
The Department of Biological Sciences at the University of Alberta brings you this video tutorial specifically relevant to your student laboratory courses, specifically microbiology. If you're a student at any school of biology, this information will be helpful for learning ho ...more
In this how-to video, you will learn how to make potassium trichromate. You will need potassium chromate and dichromate. It is easy to go between the two. You can add a base to the dichromate to make the chromate. It will go from orange to yellow. The trichromate can be produc ...more
The Department of Biological Sciences at the University of Alberta brings you this video tutorial specifically relevant to your student laboratory courses, specifically microbiology. If you're a student at any school of biology, this information will be helpful for learning ho ...more
Gottlieb Daimler's "Revolutionary Riding Car" of 1885 doesn't look like a car (in truth, it would be more analogous to what we recognize today as a motorcycle), but it did mark the very first inkling of the automobile age. Wired reports: "Under the strictest etymology — the ...more
Here at WonderHowTo, we certainly have an affinity for outer space-related topics, so I couldn't pass up this horrifying video of a man who just barely survived a simulated space vacuum. Back in '65, Jim LeBlanc stood in as a test subject for a dangerous NASA test, in order t ...more
Hobby rockets are tons of fun. Vicarious astronaut adventures abound with every launch. What if you want to be closer to the action though? What if you want to feel what it's like to be in a rocket at takeoff? With the discovery of tiny keychain cameras, we have technology sma ...more
In this article, I'll show you how to built a Wireless Transfer of Energy Transmitter. Simply put, this device will send electricity to a florescent light bulb and light it up, from up to three feet. The idea originally (at least, prominently) came from Nikola Tesla (read more ...more
In this tutorial, we learn how to make hydrochloric acid from salt. First, you will pour some salt into a distil flask. After this, you will add in some concentrated sulfuric acid to the salt. Next, you will let these react with each other. You will start to see gasses bubble ...more
In this tutorial, we learn how to powerbleed your brakes. First, test for any leaks and then release the pressure so you can fill the bleeder tank with fluid. After this, you will screw the pump on and then start to pump pressure to approximately 15 psi or check your service m ...more
Take a break from watching your lava lamp, and have some freaky fun with phosphorescence. Inspired by the Instructables project: http://www.instructables.com/id/UV-Fun/ You will need: -a pencil -laundry detergent with whitener/brightener -a bucket, paintbrush, and water -a da ...more
In this article, I'll show you how to build a simplistic circuit to generate negative ions. Negative ions have been known to contribute to fresher air, happier mood, and general health benefits. However, they also look amazing in the dark (check out the photos below, purple pl ...more
There are tons of mobile apps out there for the gaming logophile, but there's a new word building game taking over iPhones and iPads, and it not only wants you to have fun, it wants you to fight back in the "war against words". It's the Word Examination Laboratory for Dynamic ...more
Ever wonder what your brain looks like on video games? Below, Matt Richtel of the New York Times lies in a $3 million M.R.I. scanning tube while playing a simple driving game, as researchers sit by and observe the real-time images inside Richtel's brain. Why? To measure and m ...more
After 3,000 man hours and $100 grand spent, 49-year-old Randy Grubb of rural Oregon turned this old junker long-haul truck... ...into this truly breathtaking beauty (who goes by the name of Piss’d Off Pete): Here are the specs, via PopSci: DESIGN "Grubb opted for thinner t ...more
The medical field has known for some time now that negative pressure (re: suction) can drastically speed up wound recovery time. However, the machines that are currently available are quite expensive, and not an option for third world countries. Enter MIT student Danielle Zuro ...more
Watch this video from This Old House to learn how to fix a bath sink stopper. Steps: 1 Pull out the old pop-up sink stopper. 2 Use an adjustable wrench to remove the pop-up lever from beneath sink. 3 Loosen the compression nut connecting the trap to the vertical drain pipe. ...more
Watch this video from This Old House to learn how to install a frost proof faucet. Steps: 1. Turn off the water and drain the old hose faucet, also called the sillcock. 2. Use emery cloth to clean the copper water pipe leading to the hose faucet. 3. Cut the pipe using a tubin ...more
Watch this video from This Old House to learn how to install an instantaneous water heater. Steps: 1 Use template to mark position of vent hole on exterior wall of basement. 2 Bore center pilot hole for vent using a 3/8-inch-diameter masonry bit. 3 Cut vent hole through wall u ...more
Watch this video from This Old House to learn how to install an automatic shut off valve for a water heater. Steps: 1 Turn off the water to the water heater. 2 Drain the water heater using an electric pump and garden hose. 3 Shut off the gas, then disconnect the gas line from ...more
In this article, I'll be covering Triggers and Coils, part two of the series (see part one here). Generally, a simple EMP generator consists of four components; a capacitor, a transformer, a trigger and a coil of copper wire. The transformer component can be varied, but the co ...more
If you are a pet owner, going on vacation can be stressful. Usually, you need a friend or neighbor to come over everyday and feed your pets. However, by enslaving robots you can keep your pet happy and enjoy a stress-free holiday. Today, we make an automatic pet feeder from c ...more
Computer viruses are terrifying. They are undetectable, dangerous, and operate constantly right under your nose. For the average computer user, there are only a few repair options. You could buy expensive antivirus software that causes more problems than it fixes, you can wipe ...more
This is the third part of my electromagnetic pulse series (see Part One and Part Two). By now, I've covered the hardware and general concept of electromagnetic pulse generators, but how exactly do they disable electronics? How can an invisible field of energy have such a catas ...more
Building a DIY Alarm System: The Concept So, you want to protect your property, or maybe a room, car, or even your backyard. The concept of an alarm system is to notify the "alarm administrator" that there is an intruder entering the previously designated boundaries. The trig ...more
Traditional Aboriginal didgeridoos are made from trees that have been hollowed out by termites. Finishing work to smooth out surfaces and decorate the didgeridoo would soon follow. Lucky for you, you don't have to spend lots of money or find a hollowed out tree to create a did ...more
I love making my own printed circuit boards. It really gives a professional look to a finished project, and having all the design files means I can whip up another batch whenever I need to. However, when I need to make, say, three thousand swarmbots or fill an order for a doze ...more
Guitar pedals add character to your playing. However, musicians still say that certain pedals by themselves don’t live up to its promise of a perfect sound. Therefore, instead of replacing your guitar pedals with new and expensive ones, you can modify your pedals using differe ...more
Pyromania is definitely nothing new on WonderHowTo. From flamethrowers and hydrogen fireballs, to flame-making pistons and wine corks, to simply burning steel wool fireworks and DIY smoke mix, we've covered it all. But when pyromaniacal mad scientists feel the need to release ...more
If you're going to build yourself a water gun to cool down this summer, or maybe just a useful water pump, you'll need some check valves. However, the most expensive parts of a water pump or DIY super soaker are usually the check valves. So, let's make some from scratch for as ...more
Wound infections don't usually enter the blood and become systemic, spreading the infection throughout our bodies, and there's a good reason for that: Our bodies actively work to prevent it, according to research that discovered a new use for a protein first discovered decades ...more
Tardigrades are some of the toughest but least well-known creatures on our planet. These tiny animals, also called moss piglets or water bears, are definitely of this earth, but some can boast that they've also traveled to space. They have been found in the fossil record as l ...more
Colorado State University scientists have developed new tech that quickly identifies the presence of Zika virus in mosquito populations — and in human body fluid. For hard-hit nations like Brazil and Nicaragua, a field-ready test that not only identifies Zika, but also the st ...more
Gonorrhea infections reached a peak in 1975, then decreased until 2009, when infection rate started rising and has increased each year since. With the rise of antibiotic resistance, those numbers are only going to get worse — unless we find new treatments against the bacteria. ...more
How can a drug used to treat cancer be effective against viruses, too? The answer lies in the drug's shared target — specifically, cellular components that control the activity of genes. A new research study showed that one such type of drug, histone methyltransferase inhibito ...more
Coronaviruses are common viruses, and most of us catch one at some point — they cause about 30% of all common colds. A new accidental discovery could help fight these viruses, even the deadlier, emerging ones. Coronaviruses are the cause of Middle East Respiratory Syndrome (M ...more
We fight cancer in a variety of ways, but no matter whether drugs, biologics, or our immune cells are part of the battle, they can do a better job fighting back cancer if we can help them find the tumors. Scientists from the University of Rochester Medical Center (URMC) have ...more
Tremendous strides have been made in the treatment and outlook for patients infected with HIV, the human immunodeficiency virus. Treatment with a combination of antiretroviral drugs can keep patients with HIV alive for decades, without symptoms of the infection. The trouble is ...more
Ah, wine. The bouquet fills your nose. The rich finish fills your mouth with soft flavors of oak and raspberries. The wine warms your belly and soothes your mind. Yeast and their biochemical factory help create this feast for your senses. Thanks to a research group from France ...more
Infections with group A streptococcus, like Streptococcus pyogenes, claim over a half million lives a year globally, with about 163,000 due to invasive strep infections, like flesh-eating necrotizing fasciitis and streptococcal toxic shock syndrome. Distinctive substances on ...more