Chemicals Search Results

How To: Build a garden tool shed

he age-old “shtick” about a rake handle smacking you in the face when you step on the teeth isn't funny. It's happened to me more than once. One of the problems is improperly storing rakes, hoes, shovels and other long-handled tools. They can be hung up in a garage or garden shed, but usually end up right at the door, where they fall down, and again become a dangerous problem. The garden tool shed shown solves the problem of long-handled tool storage and at the same time provides a separate s...

How To: Drain and clean a hot tub spa

This eleven-part video tutorial discusses how to drain and clean a hot tub spa. It goes over the process step-by-step from turning off the circuit breaker to restarting the spa. It also gives helpful tips on cleaning the tub, working with spa chemicals and avoiding air locks that will make the process a lot more smooth sailing even for a novice spa cleaner.

How To: Make sodium metal

Learn to make sodium metal with this great video tutorial. Be sure to use latex gloves in the process, as the chemicals can be hazardous. This should not be performed by an inexperienced chemist.

Spice Rack Explosives: How to Make Gunpowder with Salt & Sugar

The best chemistry experiments are those you can perform with items already laying around your house. With only some sugar, salt substitute and an instant cold pack, you can make your very own gunpowder! Being able to make homemade gunpowder without a trip to the store can be a lifesaver, no matter if it's just for testing out a Civil War-era musket, blowing up stubborn tree stumps, or preparing for battle when imperialists overrun your country.

Classic Chemistry: Colorize Colorless Liquids with "Black" Magic, AKA the Iodine Clock Reaction

Want to make boring old colorless water brighten up on command? Well, you can control the color of water with this little magic trick. Actually, it's not really magic, but a classic science experiment known commonly as the iodine clock reaction, which uses the reactions between water and chemicals to instantly colorize water, seemingly by command. You can use different colorless chemicals to produce different colors, and you can even make the color vanish to make the water clear again.

News: Scientists Turn Bacteria into Mini Cyborg Solar Panels

Plants all around us capture sunlight every day and convert it to energy, making them a model of solar energy production. And while the energy they make may serve the needs of a plant, the process isn't efficient enough to generate power on a larger scale. So, scientists from the University of California found a way to treat bacteria with chemicals that turned them into photosynthesis machines, capable of generating products we can convert into food, fuels, and plastics.

How To: Experiment with carbon dioxide gas

Mr. G plays with chemicals and fire (what a surprise), for a really cool demonstration. An experiment you'll want to try, and probably can try immediately, as all materials (vinegar and baking soda) are likely in your house already. Exothermic reaction and gas displacement at its best!

How To: Improve acne by drinking water

In this tutorial, we learn how to improve acne by drinking water. Water is great to hydrate the body and it flushes the toxins out of the body. This will make your skin far less dry and it will keep your skin glowing. You can also eat the right foods to help keep your skin looking great. Tap water is alright to drink, depending on the different areas you are in. Filtered water is ultimately the best water for you to drink, because it will be clear of chemicals and be the best for your body an...

How To: Make a pH indicator out of red cabbage

In this video, we learn how to make a pH indicator out of red cabbage. Red cabbage will work because when it absorbs an acid then it changes color and reflects light differently. To do this at home, try to add different types of acids to the cabbage. Start off by putting the cabbage in the blender, then make sure it's shredded. Now, put it in a jar with some boiling hot water. Shake up the jar, then place the water into some separate cups. Now, add chemicals into the juice and depending on th...

News: The Galaxy S10 Is IP68 Water-Resistant — Here's What That Really Means

When it comes to resistance to the elements, Samsung seems to believe in the old saying "if it ain't broke, don't fix it." They've carried over the IP68 rating under IEC 60529 that was first found on the S8 all the way to their tenth-anniversary flagship, the Galaxy S10. While this certainly sounds great on paper, it's natural to want to dig a little deeper and find out what the rating means.

News: Sentinel Nerve Cells Spy on the Intestines, Linking Gut & Brain

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.