Woodworking: Knowing the Types of Wood

When working with wood there are too many options of what type of wood you can use. Depending on the application is how you make your decision. There's softer woods, your American hardwoods, woods that are good for shaping, carving and then painting as an end result. And then there is your more exotic woods. We'll first start with our soft woods.

The first one is fir. It has many construction applications. The next wood is white pine, this is a common wood found in most home improvement centers. The next wood is redwood. It is naturally rot resistant, and it's also used in many construction methods.

The next group that we'll review are some American hardwoods. The first one is walnut. It is a dark brown wood, and it's used in many furniture applications. The next is cherry. It is a reddish wood and often has a very figured appearance. Up next is American White ash, it is a long grain wood of a light color, it is strong and dense. Hickory is also known for it's dense qualities and strength. It is often used in tool handles and in baseball bats. Beechwood is also another dense wood often used in work top, work bench tops. White oak is another wood that is also hard and a long grained wood. It is used in many furniture applications, flooring and other aspects within wood working. Closely related to the white oak is red oak, it has a more pinkish tint and is a slightly looser grained than white oak. Maple is a very dense wood, light in color. Another type of maple is bird's eye maple. It has figured patterns.

The next group is softer woods that are often carved and in the end painted. Next is bass wood. It's used in many carving projects and has to be coated to harden it or either placed in a way in which it won't get dented. The next group of woods is your more exotic woods.

Often coming from different countries. The first is rose wood. It is extremely dense and very heavy. The next is mahogany, it is one of the softer exotic woods, has a dark brown tint and is good for cutting joints. The next is teak, it's a very dense wood and it sometimes been used on the decks of battle ships. Up next is zebra wood. It is named after it's dark stripes and it's used in decorative ways within furniture.Next would is babinga it has a pinkish brownish tint and is also used in furniture and other decorative applications. All of these exotic woods are in most cases the more expensive woods that you can buy.

Lasik Surgery - How It Is Carried Out

Lasik is a procedure that involves using a laser to change the shape of your cornea, which is the clear covering over the front of your eye.

Lasik Surgery is carried out on people with the following eye problem;

Short-sightedness (myopia) occurs when the cornea is too curved, so light rays focus in front of the retina. Close objects may be clear, but distant objects become blurred. LASIK can make the center of the cornea flatter by removing more tissue from the center than from the edge.

Long-sightedness (hyperopia) occurs when the cornea is too flat, so light rays focus beyond the retina. Vision is blurred for both near and far objects. This procedure can make the center of the cornea more curved by removing more tissue from the edge than from the center.

Astigmatism occurs when the cornea is curved irregularly, so light rays focus at several points instead of one. The eye is unable to focus evenly. LASIK surgery corrects the shape of the cornea.

Before the procedure begins, local anaesthetic is used to numb your eye. This can be given as drops or as an injection. A special frame is put over your eye to prevent you from blinking. A highly precise instrument, microkeratome is used to make an ultra-thin flap in the cornea. The flap is opened so that the laser can be used to shape the cornea underneath.

The Excimer laser, computer-controlled laser will remove precisely the right amount of corneal tissue. The flap is repositioned and seals to the cornea within minutes. Stitches are not needed. Antibiotic eye drops will be put in your eye as a precaution to prevent infection. After the procedure, your eye may be covered with a protective dressing.

Printing Solutions Today - Introducing The Latest HP Designjet ePrinters

The way architects, engineers and construction companies work today is much different than when HP first introduced large-format printers. Project turnaround times are shorter. Teams in different cities -- or even different countries -- now collaborate on projects.

AEC workers have become highly mobile, often spending more than 50 percent of their time out of the office. And faced with a tough economy, more designers have moved to small studios or home offices where there's no access to central reprographic departments. As the AEC workplace has changed, so has HP's printing portfolio. Two new web-connected HP Designjet large-format printers help students and professionals stay connected from where the job takes them...and easily bring their printing in house for faster turnaround and lower cost.

The latest HP Designjet ePrinters are the first and only large-format printers with built-in Wi-Fi connectivity, while the color touchscreen and true print previews simplify the printing process. They also offer direct access to HP Designjet ePrint & Share, a free web service that lets users access, view and print drawings from virtually anywhere. New features make it even easier to print large-format documents on the go using an Apple or Android mobile device, computer or ePrinter touchscreen. The HP Designjet T120 ePrinter is the smallest printer in its class and the most affordable HP Designjet. It combines sheet and roll loading in one compact device.

A color touchscreen and true print previews make for easy, high-quality printing. The HP Designjet T520 ePrinter has more processing power with twice the speed and resolution of earlier models. It produces professional A1 or D-size prints in as little as 35 seconds, while the color touchscreen and true print previews simplify the printing process. The updated HP Designjet ePrint & Share web service offers a variety of new features. For example, the ability to email projects to an HP Designjet ePrinter...conveniently share files with automatically generated hyperlinks... access multiple FTP sites in one place...and reference or reprint past jobs from an automatic, secure online print history.

With these web-connected printing solutions from HP, today's on-the-go AEC professionals have an easy, affordable way to bring large-format printing in house. Out of the office, they can stay connected by accessing, sharing and printing files from virtually anywhere the job takes them.