Precise Concerns Search Results

How To: Build a 3D scanner from a $25 laser level

Systm is the Do It Yourself show designed for the common geek who wants to quickly and easily learn how to dive into the latest and hottest tech projects. We will help you avoid pitfalls and get your project up and running fast. Search Systm on WonderHowTo for more DIY episodes from this Revision3 show.

How To: Make a continuous daisy chain necklace

This video shows you how to create a continuous, daisy-chain necklace. The materials used include: size 11 rock eyes in yellow, red and purple, a toggle clasp , 9mm thread and a size 10 beading needle. Start by sewing on one half of the clasp, tying a knot to hold it in place. Be sure to leave the tail ends long enough to be able to re-thread it later with a needle to sew the tail ends. The video then shows the precise order in which the various beads are threaded through to produce a chain i...

How To: Scratch on turntables for beginners

The video is from the DJ tutorial and it shows us the basic principles of scratching for the beginners. And the first lesson you should learn is that there are basically four movements and here you will actually be not going to scratch put will be moving the record forward and backward. These four moves form the basis for starting to learn scratching. First you need are the type of sounds which are either acapella (song with no music) or with sounds (tracks with breaks on it). Before starting...

How To: Eat properly in the 24 hours before a 5k race

The day before a 5K race can be an exercise in stress as you wonder what to eat and drink and when to do it, as well as about the race the next day. This video should help alleviate the first concern by giving you tips on what to eat and drink in the 24 hours leading up to a 5K to ensure that you are as well-nourished and hydrated as possible for your race.

How To: Make an overall jumper for your doll

This video shows you how to make an overall or jump suit for your doll. It is suitable for both boy and girl dolls. Take some material, plain or patterned. You need two buttons or studs for decoration. Make a square of material about 13cm by 13cm. It does not have to be precise. Fold it in half. Mark 5cm at one edge and 4cm at the other. Join up the marks and cut out the shape. Make another one the same, and sew the two together. Fold and sew the waist. For the front patch cut two layers 5cm ...

How To: Approximate the area under a curve using rectangles

The idea of finding the area under a curve is an important fundamental concept in calculus. Consider a function y = f(x). Now the area under the curve is to be calculated. The area under a curve problem is stated as 'Let f(x) be non negative on [a, b]. Find the area of the region lying beneath the curve y = f(x) and above the x-axes, from x = a to x = b. Note that finding the area under a curve will imply that you are dealing with a non negative function. The way to approach is to divide the ...

How To: Make a paper water lily

1) Make sure the paper used to make the origami water lily is a true square. One can use the paper one happens to have on hand, but anything heavier than lined notebook paper is best. 2) Work on a flat and hard surface so that all creases and folds are precise. 3) Place the paper square on the flat, hard surface so that the edges are facing in every direction. Be sure to have the colored side down if the paper is two sided. 4) Fold the paper in half from top to bottom. Crease the fold then un...

How To: Use a candy thermometer

Making a batch of candy this holiday season? To make a successful batch of candy, you need the precise temperature, consistency, and timing during the cooking process. Watch this video to learn how to use a candy thermometer.

How To: Eat sushi at a restaurant

Sushi is one of the fastest-growing cuisines across the globe. To become a true citizen of the world, prepare yourself with this primer on sushi-eating rituals. Watch this how to video to learn how to properly eat sushi.

How To: Make the y-axis rails and nut for a CNC router

A CNC router machine is probably the most useful tool a hobbyist can own, but the price for a CNC machine on the market is way more than the average hobbyist is willing to spend. You can build your own CNC with very basic tools, little knowledge of machinery, mechanics, or electronics, but be warned, these machines are inherently dangerous, so wear the proper protection and use common sense. At the very least, read the instructions and precautions on every tool you use.

How To: Set up a habitat for a baby Green Iguana

Possibly the most popular reptile pet in the world, the Green Iguana is beautiful and interesting lizard. Senior Herpetologist Ron Dupont passionately conducts a four-part tutorial on the lizard's habitat, lighting, diet and health. Ron, with the aid of his daughter Hillary, begins the tutorial on creating an iguana habitat, covering topics like enclosure choice, substrate concerns, background decoration, plants, and wood piece.

How To: Pack a survival backpack or bug out bag (BOB)

Whether you call it a survival backpack, bug out bag, get home bag, or 72-hour kit, having a backpack full of survival gear is a must for anyone concerned about disaster survival. This video series will show you how to pack an ideal survival backpack that contains everything you need to survive for 72 hours or more in an emergency in a package you can carry on your back.

How To: Prevent workplace-related back injuries and back aches

Work can be a rough place, especially if you're in construction or another laborious field of work, but that doesn't mean that anybody who works (or even doesn't work) isn't susceptible to work-related injuries. The most common workplace injuries are back injuries. This educational video, entitled "Back Your Back: Back & Muscle Injury Prevention" is all about reducing your risk of back problems.

How To: Slice up a fresh pineapple

Brian demonstrates a simple method of cutting a pineapple in this entertaining video. He starts reviewing some pineapple research. Pineapples are named after pinecones! Brian also discusses the concerns of eating pineapple for people with certain health conditions. First twist and pull off the flower top of the pineapple. Then cut off the top and bottom of the pineapple so that they are both flat surfaces. Then cut off the skin of the pineapple, retaining as much of the flesh as possible. Use...

News: HoloLens Can Give Tank Crews 360-Degree X-Ray Vision on Missions

As a commercial and potentially consumer product, one might assume it very unlikely to see the Microsoft HoloLens in the military marketplace. And that assumption would be completely wrong. One company from the Ukraine is currently working on using the mixed reality head-mounted computer for 360-degree vision inside armored tanks. If a tank crew could see the entire battlefield there are in, they would likely have a better chance of accomplishing their mission and avoiding damage. Tanks are l...

How To: Get rid of pesky winter moths

Winter moths (operophtera brumata) can be a nuisance to your trees during early spring time. The biggest concern is the larva, which is a caterpillar/inch-worm feed on the budding leaves of deciduous trees and you won't really notice it until your leaves are at their full size. A good way to get rid of the moths is with a bacterium called, BT (bacillus thuringiensis)or Spinosad a derivative of a bacterium. If you have really big trees, you may need to get an arborist to treat your trees.

How To: Identify willow tree damage caused by a borer

Weeping willows, globe willows, corkscrew willow, cotton wood are all prone to bores than other diseases. They grow in fertile soil with lots of moisture. Never treat tree chemical. Prune as necessary, take out dead diseased limbs, water and fertilize regular. This ensures the tree lasts longer and that the tree is less attractive to insects. Where tomatoes are concerned to avoid sunburn ensure that they are slightly covered with the folding of the plant. High salt level of water or chemicals...

How To: Pick out an ornamental grass for landscape

This video shows us several types of ornamental grass that can be used in landscape projects. Although none of these grasses are appropriate for use in lawns, they are great options for those who are concerned about water conservation. Ricegrass is a bunch grass with long stems and silver heads. It is a cool-season grass and will go dormant in hot weather. Little Bluestem grows quickly in the Spring and is known for its variety of colors including blue, green, and yellow. Giant Sacaton is a g...

How To: Use Studio One

Studio one single window interface now eliminates multiple windows and complex menus enabling to focus on music in an easy way. The important music creation and production tools are instantly accessible. Studio one directly opens into the start page by default. Here we can find the recent files that enable to easily choose the ongoing productions. The default page also helps to open tutorials and demo songs. We can create songs on the song page using hot keys to access various panels. For exa...

How To: Understand reduction & oxidation in Chemistry

Curious about reduction & oxidation? In this two-part episode of The Science Catalyst hosted by Barry Lambson, the subject of Chemistry, reduction & oxidation is gone over with iron powder and copper sulphate. Oxidation and reduction are heavily related which is why they are both considered "redox reactions". Acids and bases may be thought of as reactions involving hydrogen, or protons, while redox reactions tend to be concerned with electron gain and loss.