Choosing the Correct Bricklayers’ Spirit Level

The Spirit Level is probably the most expensive part of the bricklayers tool kit, because keeping the work level (horizontal) and plumb (vertical) is the core to producing high quality brickwork job. These levels come in different sizes; with the main size for everyday work is nine hundred millimeters (3 feet) or twelve hundred millimeters…

Common Mode Currents Vs Differential-Mode

In all circuits both common-mode (CM) and differential-mode (DM) currents are present. Both types of current determine the amount of RF energy propagated between circuits or radiated into free space. There is a significant difference between the two. Given a pair of transmission lines and a return path, one or the other mode will exist,…

Instructions Of Interior Painting

Interior painting requires as careful preparation of surfaces as does exterior painting. The advent of odorless paints now makes it possible to paint any time of the year. Formerly, most interior painting in the home was done in the fall or spring, when it was possible to leave the windows open to ventilate the room.…

Top Ten Bar Movies

Considering that a lot of us spend a large amount of time in bars, it is amazing how few movies feature bars as a central element of the story. There are classic bar scenes (Star Wars Cantina for example or the saloon in High Noon) but few movies feature a bar as a character unto…

Burettes, Laboratory Glassware

Definition: A burette is a uniform-bore glass tube with fine graduations and a stopcock at the bottom. It is used in volumetric analysis to measure the volume of a liquid, especially of one of the reagents in a titration. Burettes are used when it is necessary to dispense a small measured volume of a liquid,…

What The Heck Is A Shadow Box Fence?

Since you’re wondering what a shadow box fence is, I should point out the most obvious first. It has nothing to do with a box. A shadow box fence is actually a semi-private fence that’s made by placing standard privacy fence pickets on both sides of the fence with spaces between each picket. Since there’s…

Remodels For an Aging Population

It’s a family dynamic affecting the White House and homeowners across the country: seniors moving in with their adult children, and with it families taking on home remodels. President Barack Obama’s mother-in-law, Marian Robinson, 71, moved into 1600 Pennsylvania Ave. to help with Obama’s young girls, and they’re not alone. More than 3.6 million adults…