Science Experiments: Page 4

Ever wonder how to make an engine out of soda cans? Not even sure if it's possible? These videos will show you how to build a working Stirling engine out of cans and other general materials. Here it is in action:

An experiment was carried out at our laborataries to investigate the flow through two pipes of same diameter fitted at the same height from water level inside of a water tank as shown. It is found the longer pipe line inside the water tank generates a higher speed resulting more powerfull flow. Flow in this pressure pipe develops due to gravitational accelaration on a horizontally flowing water column also, when it is an enclosed stream of flow. If this length is short it is not possible to...

Sugar (a carbohydrate) is dehydrated with concentrated sulfuric acid. Since a carbohydrate was once considered just hydrated carbon, if you remove the water, carbon would be left over. The acid rips the water out of the sugar and the heat generated by this reaction causes the water to turn to steam. A black mass of carbon is produced.

DOCME or continuing medical education helps professionals of active health care to update their skills and knowledge to know about the recent developments in the matter about their professions. Also sessions of continuing education allow professionals to enable them interact with their counterparts. Owing to these reasons, cme is a significant part of active professional. CME courses for physicians are undertaken by physician assistants, primary care physicians, registered nurses, nurse...

In my opinion, one of the most neglected inventors of all time. The names Edison and Marconi come to mind as familiar, but Tesla? Most think of a car. Few know that Tesla is responsible for alternating current, florescent lights, radar, remote control, generators that preform efficiently, the spark plug, and many others. The U.S Supreme Court declared in 1943 that Tesla, not Marconi, was the true inventor of the radio.

A couple months ago, the world was supposed to end. It didn't. But that didn't stop the Centers for Disease Control and Prevention (CDC) from warning citizens of one global possibility besides complete destruction—ZOMBIES. They used the farcical flesh-eating living dead as an excuse to teach you about the necessity of real-life emergency planning.

They've been at it for a few years now, but the crazy group of amateur rocket scientists who call themselves Copenhagen Suborbitals have triumphed over adversity, successfully launching their DIY rocket nearly 2 miles into the sky last Friday. The privately funded, non-profit aims to one day send human beings into suborbital space on the cheap, without the need of government budgets and administration.

Transverse wave motion is the beautiful rippling effect that occurs when a moving wave causes oscillations that travel perpendicular to the direction of energy transferred. (For example, via Wikipedia: "If a transverse wave is moving in the positive x-direction, its oscillations are in up and down directions that lie in the y–z plane.")

While most people go to great lengths to conceal their emotions, Japanese company Neurowear is offering a product that would reveal states of tension, excitement and relaxation—all by the up-and-down motion of a pair of cartoony cat ears.

Have you ever felt the desire to reach out and touch a galaxy? Or "feel" those stunning nebulas and planets you see in Hubble photos? As alluring as it sounds, it's safe to say the odds of your whim coming true are nonexistent. You'd have to travel about 6 earth years and spend millions of dollars building your own personal spacecraft to get close enough to actually wave your hand through one of Saturn's rings. But in an attempt to help the blind "see" what they're missing, some semblance of...

In recent years, Russian marine biologist Alexander Semenov has built a stunningly beautiful collection of deep sea photography, capturing alien creatures only locatable in the hostile, icy depths of the far northern sea off the coast of Russia.

DIY is a far-reaching term—though culturally it tends to refer to hacks, mods, crafts and constructions, its meaning can also extend to the ongoing trials and tribulations of the evolution of mankind: astonishing developments in technology, desperate acts of self-preservation or as in today's topic, discoveries in science that truly move the needle.

Calling all curious minds—scientists, anthropologists, relentless tourists: Saturday, April 9th, is International Obscura Day, the day to "explore hidden treasures in your hometown," or so says Atlas Obscura, a website dedicated to public curiosities and esoterica. If you're the kind of person who appreciates public oddities every day of the year, tomorrow is icing on the cake. Celebrate Obscura Day in one of hundreds of locales—from Los Angeles to Sydney, from Berlin to Manila.

These magical beans can keep your coffee hot for hours. Not blazing hot, burn your tongue on the first sip, and not disappointingly lukewarm, but coffee fit for every baby bear—just right. Genius.

What would it be like to have a super-realistic humanoid modeled after you...and then come face-to-face with the moving, life-like version of yourself... Creepy? To say the least.

Some of you have already seen the superbness of tonight's "super moon", but for those of you in the western half of the United States, there's still time to ready your cameras and enjoy March 19th's super full moon. It's the biggest full moon in almost 20 years, the last one appearing in March of 1993.

It's tough to figure out what a mummy would have looked like when he was alive; soft tissue of a human body decays, even in ice. But, Dutch brothers Adrie and Alfons Kennis took the challenge. Using techniques that belong to both science and art, they managed to reconstruct the face and body of Otzi the Iceman, a mummy who was found in the Italian Alps in 1991.

Are you prone to crusades of the overambitious? Well, here's one for you: try to find and identify every animal on earth. You may think scientists have a handle on this, having pinned down 1.4 million animal species so far, but there are millions more are out there, waiting to be found. Brazilian scientists have put the cost of finding the rest at a decisive $263 billion.

How about a laser? One that is strong enough to nudge debris out of earth orbit. That's what NASA contractor James Mason wants to do, and his lab simulations suggest that the idea is possible. Mason wants to use a 5kW ground-based laser and a ground-based 1.5 meter telescope to spot potentially hazardous space waste and shove it off, by about 200 meters per day of lasering. It's kind-of like air traffic control for near earth orbit.

Not in the mood for a sappy ending? Well, strap in because "Emotional Response Cinema Technology" lets your own body physiology control the movie music, the special effects, and even the movie ending. A collaboration between BioControl Systems, Filmtrip, and the Sonic Arts Research Center at Queen's University Belfast, the technology was recently showcased at the SXSW film festival in Austin, TX, where the newly minted horror film Unsound interacted with the audience through wires connected to...

After getting slammed with a crazy-big earthquake/tsunami, the Japanese nuclear plant Fukushima Daiichi might be on the brink of meltdown. Not as bad as Chernobyl, but maybe as bad as Three Mile Island. Nobody wishes such a disaster on anyone...anywhere in the world. In the US, there are about 100 nuclear facilities, about 8 of which are located near hot beds of seismic activity.

How far would you go to be resourceful? Early Britons used each others' skulls as drinking cups and bowls. Recently, researcher Silvia Bello found human skulls with the top cut off laying in Gough's Cave, England. Skillful cut marks make it look like fellow humans scraped off the dead skin to clean the bone, and chips around the rim of the skull cup make it look like the edges were evened out for a better drinking experience. Researchers have found other skull cups in France and Germany, but...

Truly spectacular and one the most breathtaking DIY endeavors to grace the front page of WonderHowTo, a recreation of Pixar's UP house was launched to an altitude of 10,000 feet in a private airfield near Los Angeles this past week. The project was executed by a team of engineers, scientists and veteran balloon pilots—(meaning, please, Do Not Try This at Home).

Does this man look vaguely familiar? A neighbor or former co-worker, perhaps?

Colored smoke bombs never get old. Add a glass laboratory bell jar and a simple rewind camera trick, and you have a beautiful "60 sec experiment with the color Indigo" by photographer and designer Paul Octavious.

When's the next full moon?

Eric Jacqmain is one smart cookie. Borrowing from the same principles of Archimedes' mythological death ray, the Indiana teenager used an ordinary fiberglass satellite dish and about 5,800 3/8" mirror tiles to create a solar weapon with the intensity of 5000x normal daylight. The powerful weapon can "melt steel, vaporize aluminum, boil concrete, turn dirt into lava, and obliterate any organic material in an instant."

Most folks mistakingly think that slime - or green silly putty - simply can't be whipped up without borax. But the buffer solution can easily be replaced by another ingredient that you already have lying around in your house: laundry detergent.

For some of you out there, today may be a looooong Friday. But have no fear, if you've yet to furtively accomplish shaving off a few extra minutes from the office clock, there is an alternative for getting through the day: computer pharmaceuticals. Relax, moms, we're not talking illicit drugs. Computer pharmaceuticals (AKA: optical and audio illusions) are completely natural, harmless highs that promise to alter your perception and consciousness- without the risk of drugs or alcohol.

Incredible. There's a type of sand (found only on the small Okinawan island of Iriomote) in which each grain resembles a tiny star. And I never would have known, if it hadn't been for blogger Jason Kottke's pal Mouser. Mouser collects sand from all around the world, and then documents each sample with a macro lens:

What happens when you toss boiling water into the -30 degrees celsius, bitter cold Canadian air? Instantaneous "fog" (AKA a big vapor cloud of awesomeness).

The Leidenfrost Effect: "a phenomenon in which a liquid, in near contact with a mass significantly hotter than the liquid's boiling point, produces an insulating vapor layer which keeps that liquid from boiling rapidly". It looks pretty spectacular captured at 3000 frames-per-second (almost as spectacular as when the same principle is applied to the human hand).

Gross out your friends, or just have fun playing with some goo! You can make your own slime at home easily. All you need is some corn flour and water. Add food coloring if you really want to make it cool!

All you need is a burning laser, a bit of flash paper (which you can find at any magician's shop), some thread, a balloon pump, and of course, a balloon. Then set it all up to set a fire inside the balloon!

Ever wonder what happens when you put a bar of Ivory soap (the soap that floats!) in a microwave for a few minutes? This science experiment shows what happens when water molecules in a bar of Ivory get nuked! Try it!

Soap is an incredible thing and this how-to shows some of its incredible qualities. You'll need a plate, some whole mile, some food coloring, some Q-tips and some dish detergent. It's an explosion of color! Some very unusual things happen when you mix a little milk, food coloring, and a drop of liquid soap. Use the experiment to amaze your friends and uncover the scientific secrets of soap.