Lasers are bright, coherent light sources that propagate in a well defined beam. Those properties make them useful for communications, interferometry, and even.

How to Find the Focal Point of a Parabola

A parabola is a curved shape that can be used to focus energy at a single point. With a parabolic cooker, for.

How to Create a Focal Point in a Room

A focal point for a room can be compared to the center stone of a fantastic piece of jewelry: It can make.

How to Create Printable Payment Plan Index Card

Create a portable budget for your customers by making customized payment plan index cards they can carry with them or you can.

Stem Rot on Squashes

Squash belongs to the cucurbit family along with cucumbers, melons and pumpkins. They are vines requiring much sunlight, space and air circulation.

How to Select the Best Lens Focal Length for your Security Camera

When you are installing a security camera, you want both to cover the most area and to provide the most detail necessary.

How to Calculate the Focal Point of a Parabola

Finding the focal point of a parabola is a task you may have to accomplish in a high school or college geometry.