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How To: Make a model of a space comet

Are you an active or aspiring scientist? In this free educational video from National High Magnetic Field Laboratory, learn how to make a model of a comet, and why models are important to scientists. Get started on a scientific road to discovery with help from this excellent video on how to make a model of a space comet.

How To: Deep clean your vinyl LP records with steam

This video shows a method of cleaning LP records using steam. He uses a Perfection steamer and a record cleaning machine with vacuums, along with a set of brushes, Disc Doctor cleaner, and laboratory grade water. He uses distilled water in the steamer. He turns the turntable on, applies the cleaner, spreads it with a brush, and applies the steam while the record turns. After the steaming is done, he continues rubbing it with the brush, and turns on a vacuum. Next he runs the steamer of the re...

How To: Safely catch a bat

Bats getting caught in houses is a regional problem. In general, bats are scared of humans, but they will bite when they feel cornered. The New York State Health Department produced this video to urge New Yorkers to avoid the risk of rabies and rabies treatment by capturing and submitting for laboratory testing any bat found in their home that may have come in contact with humans or pets.

How To: Beat insomnia by resetting your bedtime routine

When sleep problems becomes chronic, it can morph into psychophysiological insomnia: As you prepare for bed, you begin to get nervous about sleeping. In this video, David Schulman, MD, director of the Emory Sleep Disorders Laboratory in Atlanta, explains how the body reacts to the expectation of insomnia. He offers simple changes you can make to help break the cycle.

How To: Make clouds inside a bottle

Using a huge jar and with water colored with die in it you can make clouds. To do this set up the apparatus as shown in the video. Now open up the top valve and blow air into the jar. Now this causes the air inside to be compressed as we are pushing more air into the confined jar. This creates a high pressure inside the ball. To understand how clouds are formed you need to know two concepts. The first concept is that as pressurized gas expands it cools. The second thing is that warm gases can...

How To: Calculate percent yield

This video shows you how to calculate the percentage yield in chemistry. To find the percentage yield, you will need to divide the actual yield by the theoretical yield. Then, multiply it by 100: i.e. % yield = actual yield/theoretical yield x 100. An actual yield is the amount of a substance produced in an actual laboratory experiment. It is based on an actual physical measurement of a quantity. The theoretical yield is the yield as is calculated on paper: i.e. through calculations. Therefor...

How To: Hack Smart Cards for satellite TVs

Notorious hacker Chris Tarnovsky opens his underground laboratory to WIRED, providing a peek into the world of satellite television smart-card hacking. This complicated process involves nail polish, a pin head and various acids -- so don't try this at home (unless you're Chris Tarnovsky)! Chances are you won't even know what's going on here, but that's not going to stop you from watching this video tutorial on how to reverse-engineer a satellite TV smart card, is it?

How To: Measure electrical resistance with a multimeter

This is a guided hands-on laboratory activity to help a student understand the proper and safe use of a multimeter to measure electrical resistance. These two video guides the student through the proper techniques for measuring resistance with a multimeter, but you'll need some assorted resistors, a rectifying diode, a photo cell, an electronic labs kit, and some other stuff.

How To: Choose plant fertilizer

To grow beautiful flowers and plants in an outdoor garden, you need to feed your soil the right plant food – a fertilizer that will help your plants thrive. Watch this video to learn how to choose plant fertilizer.

Steampunk R&D Podcast 02: Joey Marsocci on Professional Steampunking

This week on the Steampunk Research and Development Podcast, our guest is Joey Marsocci, better known to the world as Dr. Grymm. He's a full-time, professional Steampunk maker, and is the owner and operator of Dr. Grymm Laboratories. He's written several books and has worked as a designer at companies such as Hasbro and Disney. In fact, he worked with Disney to design the 20,000 Leagues Under the Sea attractions for both Paris and Tokyo Disney parks.

How To: Use the Unicam UV-visible spectrometer in the lab

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 how to use the Unicam UV-visible spectrometer, split beam and internal printer in the lab.

How To: Use pipetting techniques in the lab

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 how to use pipetting techniques in the lab.

How To: Find gold and sapphires

Do not discount the "pretty" rocks found along with gold. The sapphires you see are worth many times more than gold. Sapphire (& Ruby, (corundum), is like garnet, a relatively high specific gravity that will catch in a sluice readily. These gems act as gold, they will drop behind a boulder, in bedrock cracks, and set up in the stratiform layers of a bar on the inside bend of a stream. In a perfect (laboratory world) a river bar sets up from front to back: Gold, Platinum, Lead, Iron Ore (black...

How To: Boost Sound Quality on Your Galaxy Using Dolby Atmos

While the audio experience is solid on Galaxy phones, it isn't the absolute best out of the box. That's because Samsung has partnered with Dolby Laboratories to provide its industry-leading sound technology known as Dolby Atmos, but it's turned off by default. Once enabled, your audio experience will go from good to great.

News: Amazon Will Let You Return That Hoverboard Deathtrap, No Questions Asked

The Consumer Product Safety Commission (CPSC) announced that Amazon will be offering full refunds for any hoverboard purchased through its site in the United States or Canada, no matter when you bought it. Just visit amazon.com/returns or amazon.com/contact-us to start the process. While they will not stop selling hoverboards anytime soon, they obviously want you to feel safe about your purchase.

How To: Help NASA Write Code to Fix the International Space Station and You Could Win $10,000!

The International Space Station is a habitable man-made satellite currently in orbit around the Earth. Launched in 1998, the ISS is used mainly as a microgravity and space environment research laboratory where astronauts perform experiments in large variety of fields, including biology and physics. In order to be hospitable for crew members and scientists, the ISS needs energy. To do this, the station uses its solar panels to capture rays of sun and power the station up. In order to garner th...

How To: Watch NASA's Curiosity Rover Land on the Surface of Mars Tonight (Live Online)

NASA will be attempting to land the Curiosity rover on the surface of Mars tonight, and you can watch it live. Curiosity (the Mars Science Laboratory) was launched almost a year ago on November 26, 2011, and will be finishing its 354 million mile journey to the red planet tonight (Sunday, August 5th) at around 8:30pm PST. The craft will be deploying a supersonic parachute to slow itself, as it will be traveling at upwards of 1,000 mph. The show's not over though, as the first images from the ...

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