Laser Beam Search Results

How To: Transfer sound over a laser light

Check out this low cost project. This video will show you how to transfer sound over light! Yes, this is possible. You'll transfer a sound with a distance of 5 meters, but you may experiment on greater distances if you'd like. You'll need a laser (or an LED) for this audio project, one Opto transistor (or resistor), one 3-volt battery, two mono audio jacks, and some alligator clips. Just watch this cool electronic audio experiment and try it out yourself.

How To: Take apart an Etch a Sketch

Before I built the mechanics for my laser cutter I was planning on using the etch a sketch since the pulleys where already there. I accidentally cut the wires while taking it apart, so I made it from scratch (much bigger too). But I figured I'd post this in case you want a small laser cutter and need to learn how to take apart an etch a sketch. It was a bit tricky. The tought part was trying to take off the case. What you need to do is to pry the red off of the black, not the other way around.

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: Build a Cheap Arduino Tachometer to Measure the RPMs of Spinning Fans (And More)

A tachometer, or RPM counter, is a device that measures the speed of something that's rotating. In a car with a manual transmission, the tachometer can be helpful in determining when to release the clutch and how much gas to give when you're taking off. This DIY Arduino Tachometer by Chris on PyroElectro uses an infrared transmitter and receiver break-beam pair to measure the RPM of a computer fan. When the fan blade passes between the transmitter and receiver, the IR beam counts the interrup...

News: This DIY Passion Fruit Battery Can Power Lasers!

It's been proven over and over that you can make batteries out of fruits and vegetables such as lemons, potatoes, and even apples. Turns out, passion fruit is also acidic enough to power a battery, but Maui Makers member Ryan K decided to take it a step further by adding a laser. Passion fruit, or Lilikoi as it's called in Hawaii, is usually over-abundant in Maui, so Ryan decided to put it to good use. Using anodized bolts, copper pipe, wire, switches, and some LEDs, he built a battery that c...

How To: Use Spotlight in Autodesk 3ds Max 2014

This 4th Chapter of Lights in Autodesk 3Ds max is fully concentrated on spot light. We will learn about the various spot light parameter of 3ds max like, Hotspot/Beam and falloff, then how to use overshoot or its limitations, how we can make the spotlight rectangular than circuler and many more. Hope you will enjoy.

How To: Crochet a left handed sun beam granny square

make a left handed sun beam granny square crochet in minutes! 1. Prepare the materials, two different yarn colors are needed. 2. Start off with a chain 1 stitch. 3. Make a half double crochet through a chain 4 stitch (12x)4. Work another chain 1 stitch5. Make 2 half double crochets to join the chain 1 stitch (24x)6. Cut the yarn and change the color. 7. Work 2 half double crochets on the new color and join together with the chain 1 stitch. 8. Change yarn color again. Insert the hook from the ...

How To: Get rid of unwanted facial hair for women

Get the lowdown on all the ways to remove pesky facial hair—from the brand new to the tried and true. Different options: threading, laser hair removal, intense pulsed light treatment, electrolysis, facial bleach, a waxing treatment or kit, tweezers, and prescription cream Vaniqa (optional). There are many hair removal options, so watch this video and choose the one that is best for you.

How To: Relief print a woodcut

Watch this one minute printmaking demonstration to make a wood block for woodcut printing. First, transfer a laser inkjet print to a wood block. Then carve a relief image into the wood block. Next, ink and print on a Mini Halfwood Press using a chase device. With the right set up, woodcut printing is a fine art worth learning.

How To: Buy a printer

Which printer is the right one for you? The Lab Rats,Andy Walker and Sean Carruthers, go over the different types of printers: laser, inkjet, and multi-function and help you choose the right one for your needs.

How To: Draw a gymnast on the balance beam

This video tutorial from Drawing Now demonstrates the drawing of a gymnast doing a routine on the balance beam. Her look of concentration evokes the drama and strength of both will and body required by this ancient sport. Learn to evoke that same feeling in your drawing by watching this video. Here are some instructions from the artist:

How To: Stay safe driving in fog

Driving through thick fog can sometimes be intensely scray. Luskily we have a how to video for how to deal with situations like these. When you run into fog on the road, keep your head and follow these simple tips to stay safe.

How To: Fix the Perfect Ring Scratches on Your Laser Burned XBox 360 Discs

If you've accidentally jiggled your Xbox while a game was playing (or maybe your pet did), you might experience the Perfect ring scratches - or a laser burn. Ignore all the advice that tells you to use toothpaste, an eraser, or even crazier substances. All you need to do is go down to your local video game store or rental store (like Vintage Stock, GameStop, EB Games, or a similar place) and ask for a disk resurfacing. It's usually either cheap or free, and definitely worth it!

How To: Do the Prologue Speed Run achievement in Mirror's Edge

In this video, we learn how to do the Prologue Speed Run achievement in Mirror's Edge. You can unlock this after finishing the main story. The prologue has a qualifying time of three minutes. Rather than jumping to the left, you can jump straight and hang onto ropes. You can also jump along a beam and that will save a lot of time. Make sure you grab the left bar and then you can maneuver around a lot more easily. Continue to run through the level doing a fast speed. Once you are finished, you...

How To: Change your car's headlights and taillights

In this video tutorial, viewers learn how to change a car's headlight and taillights. There are 3 types of headlights for a car. The 3 types are: sealed beam, halogen bulb and HID lights. This video shows viewers how to change halogen bulbs. Begin by opening the hood of the car. Remove the fastener or wire harness and then remove the bulb. Now replace it with a new bulb and put the wire harness or fastener back on. This video will benefit those viewers who have a vehicle and would like to lea...

How To: Make a 3D scanner with free software

Scanners have been around for a while. They allow us scan photos and documents into digital versions that are a lot less susceptible to damage over time. But what if you want to digitize the memories of something that isn't 2D? With this hacker's how-to, you'll learn a method for making a 3D scanner. To follow along, you'll need a computer, a printer, a web cam, white foam board and a laser pointer.

How To: Bleach your upper lip

Worried your upper lip makes you look more like Groucho Marx than Greta Garbo? If you're averse to waxing, and laser hair removal is out of your price range, bleaching is an easy, inexpensive alternative.