Make an Electric Circuit

In 1958, Patrick Flanagan invented the Neurophone, a device patented in 1962 that allows radio signals to be picked up by the human nervous system. The skin is the organ that receives the signal, converting it into a modulated molecular vibration, which the brain interprets in ...more

While Apple Maps didn't receive as huge of an update on iOS 17 as other apps such as Safari, Camera, Photos, Notes, Weather, and Messages, there are still some very important new features and changes you need to know about. The latest software update for Apple Maps adds a muc ...more

Sputnik, Apollo and the Space Race. If you watched the State of the Union address last night, you probably heard President Barack Obama mention those three things. The Space Race was an informal bout between the Soviet Union (USSR) and the United States (USA) over the ascenda ...more

Around the world, X-People (yes... there are X-Women, too) are under attack from an intolerant sapiencentric ruling class. Integration without equality is a farce. Autonomy is denied outright. Human prejudice cannot abide a mutant state. Human fear, born to hate, imposes itsel ...more

If you're like me, you were always jealous of the kids with rich parents who got to ride around in their own Power Wheels cars. Now that I am tall enough to sell my body and time, I find myself attaining childhood dreams like buying my own Power Wheels car. I would not have ch ...more

Tesla coils are totally insane, yet undeniably captivating. And they can be used for many things, from electric painting to dueling musical battles. But one trigger happy fellow has a different use for Tesla's lightning shooting coil. A weapon. After being inspired by the ste ...more

Hi everyone! I love the ideas what you showed us and the how to make does electric stuffs, but I had some ideas: How can I make a good power-plant at home so that I wouldn't need to pay taxes on electricity(like in my basement)? How to build robots or just machines that coul ...more

There is nothing more annoying than a greedy roommate. It's absolutely infuriating to wake up and find the cookies your mother just made for you gone without a trace. Your favorite drink is empty and the homemade meal you worked so hard on the night before is nowhere to be fou ...more

I love making beeps and bloops with the Arduino pitches library, but sometimes archaic 8-bit tunes just don't cut it. Whether you want your robot to terrify your enemies with a demonic synthetic voice, you just need a pocket boom box on the go, or you want to a miniature guita ...more

Fans of Doctor Who know that the sonic screwdriver is the ultimate tool. It can unlock doors, turn on lights, detect life forms, solder wires, and sabotage weapons. Presumably, the sonic screwdriver creates sonic vibrations to achieve whatever the doctor wants by vibrating th ...more

Valentine's Day is almost here, and if you're like me, you're scurrying to do something special for your mate. The standard chocolates and flowers just isn't cutting it anymore, and you can only make so many homemade cards before it becomes banal and meaningless. So, what can ...more

I have an absolutely wonderful time making projects and writing articles for all of you mad scientists! Today, I will bring you behind the scenes for a look at the workbench, tools, and software that make the Mad Science World possible. Above is my beautiful workbench! My who ...more

A deck of cards may be a magician's best way to demonstrate his or her's sleight of hand, but for the prankster, it's the perfect way to deliver a shocking 300 volts of electricity! And that's exactly what I'm going to show you how to do today. Stuart Edge used it in his "Elec ...more

The trick in the video is that the magnets are made of a conducting material and they connect the battery terminals to the copper wire, so the battery, magnets and copper wire make a circuit that generates a magnet field just in the vicinity of the battery. The geometry means ...more

The electric air freshener is one of those devices that seems like it could only have one possible function, but can actually be repurposed in a few different ways. If you're looking for a practical use, you can turn it into a bug killer, but it's also perfect for pranks. Wit ...more

I was in college, and my 15-inch Sony Vaio laptop was my prized possession. It was my first PC and probably the most important thing I brought with me to my dorm — it was both how I completed my assignments and my primary source of entertainment. How could it turn its back on ...more

The ride-sharing firm Lyft and Faraday Future, a troubled electric carmaker and potential Tesla competitor, have quietly appointed new top executives, but like the rest of the industry, they struggle to find talent for their driverless programs. Lyft has tapped Salesforce.com ...more

A lot of my hacks use salvaged parts from an old microwave, with the microwave oven transformer (MOT) being the most useful component. In this "Quick Clip," I'll be using a MOT again (a dual MOT stack) to make deadly flame-looking electricity jumping around midair. This scien ...more

Helping to prove that science is way awesome, an 18-year old electrical engineering student has successfully made a light bulb float. His name is Chris Rieger, and he's been working on his "LevLight" project for about six months now, with pretty amazing results. This feat of i ...more

The guitar is a double-edged sword. I've played all my life, and though I love the act of guitar playing, there are quite a few people I could live with never hearing play again—ever. Paradoxically, it seems that the less dexterous and committed to practicing are the more lik ...more

At the moment, it would be safe to say that demand for devices running Tango, Google's augmented reality smartphone platform, is relatively low among consumers. Kaon Interactive, a B2B software company who has built more than 5,000 interactive applications for use at trade sho ...more

With the microwave oven transformer (M.O.T.) salvaged in a previous project, a simple electrical circuit can be rigged to get high voltage arcs to fly outward and upward along a "V" shaped spark gap. You can look, but don't touch! These arcs of plasma are lethal enough to kil ...more

This year's SXSW festival had a plethora of news and discussion about autonomous cars, but perhaps none was more exciting than the NIO EP9. The car was first shown off in November in London when it ran the Nürburgring Nordschleife track in record time. If that sounds unfamili ...more

If you're ever lost or hurt out in the middle of nowhere with a dead cell phone, you might be able to "flag" down help as long as you're near some railroad tracks. Some train tracks carry a small electric charge as a means of detecting other trains for signaling or for detect ...more

"Ahoy-hoy." If telephone titan Alexander Graham Bell had his way, we'd all be answering phones like Mr. Burns. Thankfully, frienemy Thomas Edison had enough sense to realize we weren't always on the briny. He preferred "hello" as our standard telephone greeting, which he is c ...more

In the music world, it's safe to say electric instruments are more versatile, but they lack the portability of their acoustic counterparts. However, with the aid of your smartphone plus an audio interface, you can play your electric instrument anywhere — with all the pedal eff ...more

Back in 2007, YouTube user HouseholdHacker posted a parody video on how to make a high-def speaker for under a buck. MythBusters took on the challenge and busted it. Although that particular method doesn't seem to work, that doesn't mean you can't make your own speaker for le ...more

I don't know how many of you had this experience in your youth, but when I was a kid, I used to actively think about what would happen if I suddenly woke up in a fantasy land, or were to pass through a portal into another space and time. I knew it wouldn't really happen, but w ...more

The latest film addition in the American-produced Millennium series, The Girl in the Spider's Web, was just released on Blu-ray a few days ago. As you could expect, the movie has many hacking scenes throughout, just like the previous English and Swedish language movies centere ...more