How To: Turn a 5MW laser into a 100MW laser

Tired of that dinky little 5MW laser? Turn the power up and convert your 5MW laser into a 100MW laser? A small amount of modification can produce a significantly stronger light coming out of your laser. You will need a small screwdriver (such as a jeweler's screwdriver), needle nose pliers, a soldering iron and some bonding glue to do this properly. This video tutorial will show you exactly how to turn your 5MW laser into a 100MW laser.

How To: Build hot air balloon out of a garbage bag

This is a simple and easy tutorial, and anybody can build a hot air balloon out of a garbage bag by following the instructions in it. All one needs is a garbage bag, some stiff industrial wire and fire starter bars. The important thing, according to the author, is to judge how many fire starter bars will be required to make the balloon rise without melting its plastic body. First, two long wires are twisted together in the middle to make an 'X'. A smaller wire is twisted onto the middle of th...

News: NASA's Curiosity Just Got Bricked! Working LEGO Mars Rover Ready for Exploration

Using a LEGO Mindstorms NXT kit, a pair of awesome engineers put together this fully functional replica of the Curiosity Mars rover. Not only is it built completely out of LEGOs, it's motorized, programmable, and ready to explore the far reaches of your living room. The rover was built for the Build the Future in Space event at NASA's Kennedy Space Center. Four of the six wheels are powered, allowing it to make 360 degree turns, and the arm and mast are both fully controllable. The entire con...

How To: Make an animatronic hand

Ever feel like you don't have enough hands? Build a third one! You will need a 3 foot aluminum rod, a piece of 2 inch by 4 inch wood, a 25 pack of 1/8 in by 2 inch toggle bolts, #6 by 1/2 inch metal screws, an electric drill, drill bits, 14 inch cable ties, and a hacksaw or chop saw. Watch this video tutorial and learn how to build an animatronic robot hand.

How To: Make an Internally Lit Ice Sculpture with LED Lights

Why not make the best of an icy cold winter day and make something even cooler? In this tutorial, you will learn how to make a natural ice sculpture in your yard and light it up with LED lights for a cool, nighttime effect. You will definitely have the best house on the block once you start lighting up your ice, so check this video out and get started! This project is super quick and cheap to create, too!

How To: Modify an ERTL pump action toy shotgun

In this Hobbies & Toys video tutorial you will learn how to modify an ERTL pump action toy shotgun. Unscrew the orange part of the barrel and cut it as shown in the video. Sand out the part that will be used, get a funnel piece and add electrical tape around the nozzle and glue on a half inch PVC cup. Now put electrical tape around one half of another tube that is of the same height as the funnel piece and glue it on to the funnel piece. You then put hot glue in to the open area. The next ste...

How To: Make a sling shot with a stick and soccer ball

This video demonstrates how to construct a sling shot out of a soccer ball. You will need an old soccer ball or tire tube, a "Y" shaped stick, and a pair of scissors. Slice the soccer ball open to remove the rubber lining. Next, cut two thin strips of the rubber lining. Cut out one hexagon shaped piece of leather from the deflated soccer ball. You can use this for the sling shot pouch. These visual guidelines depict how to use these materials to construct a sturdy slingshot in a matter of min...

News: Apple Engineer Builds Fully-Functional Ancient Computer With LEGOs

Apple software engineer Andrew Carol built a fully-functional replica of the Antikythera Mechanism, the world's oldest known scientific computer. The 2000-year-old analog device was used by the ancient Greeks to predict the year, date, and time of future solar and lunar eclipses accurately to within two hours. Carol put together the 110 gears (made with 1,500 LEGO Technic parts) in just 30 days. See how it works below. For more information, check out Fast Company's interview with Carol.

How To: Cut with a utility knife safely

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. A utility or razor blade knife is good to cut soft and thin material like cardboard or styrofoam. Cover work surface with scrap. Stand when cutting to be safe. Don't cut like an exacto knife. Be gentle and don't go through the first time.

How To: Build a looping rolling marble machine with magnetic elevator

Wow! No longer do you have to buy those huge marble machine roller coaster toys — you can DIY one! This video covers the materials, tools and techniques used to make a homemade rolling ball marble machine. If you haven't seen this rolling ball marble machine toy in action yet, WATCH IT. It's a looping rolling marble machine made with wood, rebar tie wire and polyurethane tubing, featuring a magnetic elevator.

How To: Build a simple mouse trap car

In this tutorial, we learn how to build a simple mouse trap car. To do this, you will need: a ruler, two records, a thin metal rod, and a mousetrap. First, you will lay the ruler down to measure out where you are going to place the records. Next, you will hold these into place by using the metal rod in between the two of them. If it's not secure, use washers and glue to keep it in the proper place. Then, attach the mousetrap to the middle of the rod in between the records. This is it! Now you...

How To: Replace the blade of a utility knife

This is an instructional video featuring Doug Prime, founder of the Future Engineers Center at the University of Massachusetts Lowell. This is an instructional on utility knives that are used to cut foam board and cardboard. The blade replacement is integral to this craft or hobby tool's maintenance.

How To: Make a rubber band powered car with CD wheels

In this video tutorial, viewers learn how to make a toy car with CD wheels. The materials required for this task are: 2 thread spools, long piece of thing wood, 4 CD's, 2 screws, 2 washers and 2 bolts. Begin by drilling a hole in the spools and 2 holes in the wood. Then place a washer on the screw. Now place the CD on the washer. Then add another washer and secure it by screwing on a bolt. Now put the wheel through the first board of wood. Then put it through the spool and other wood board. N...

How To: Make your own mylar balloon

Mylar balloons are the best party favors. They are big and shiny and last longer than normal latex balloons. In this tutorial, learn how to make a mylar balloon at home, from scratch. Stop spending so much money at the party store, and next time you have a big event, make your own! Not only will you save money, but it will give your party a cool personal touch.

How To: Make an air vortex cannon

You've seen what a vortex cannon can do, so now it's time to build your own! Okay, this air vortex cannon is not huge, but it's definitely a fun thing to construct if you have some junk plastic laying around, and it works really well for its size. Grab a cheap plastic container and follow along to the video instructions and build yourself a homemade vortex cannon!

How To: NASA Engineer Shows You How to Build a Mini Curiosity Mars Rover Out of LEGOs

You might have seen our post on this last week: It's a working reproduction of the Mars Curiosity Rover made with LEGOs, but it's a bit complicated for anyone without a decent amount of robotics knowledge. Plus, you need to have some Mindstorms NXT and TECHNIC parts lying around. If you want something a little simpler than programming a working LEGO rover, you could always build a scaled model of the MSL out of regular LEGOs. Not only is this easy to build and looks great, but the step-by-ste...

How To: Make popsicle stick fences

If you've got a tiny farm, you're going to need some tiny fences. Don't shell out your whole allowance for a fancy store bought fence set. Instead make your own fences out of popsicle sticks. This video tutorial demonstrates how to create stalls and stables so your miniature farm animals won't escape.

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