Category: Physics

Why is transformation important in image processing? Transform methods in image processing An image transform can be applied to an image to convert it from one domain to another. Viewing an image in domains such as frequency or Hough space enables the identification of features that may not be as easily detected in the spatial […]

What is the best way to clean a CD disc? They are usually best left alone unless they skip or cause other problems. If they need a clean, you can blow the dust off then wipe them down with a damp lint-free cloth. Distilled water and microfibre cloths are recommended. How do you clean CDs […]

What is meant by ergonomic? “Ergonomics is the scientific discipline concerned with the understanding of interactions among humans and other elements of a system, and the profession that applies theory, principles, data and methods to design in order to optimise human well-being and overall system performance.” What is ergonomics in safety? Ergonomics can roughly be […]

How long after a dog gives birth can she eat? Female dogs do not generally eat immediately after giving birth. They wait around 12 hours before their first meal. If your dog refuses to leave the puppies and eat, you can tempt her with foods she likes the best. How many times a day should […]

What was Ivan the Terrible known for? Ivan the Terrible was the first tsar of all Russia. During his reign, he acquired vast amounts of land through ruthless means, creating a centrally controlled government. How long did Ivan the Terrible live? Ivan the Terrible, Russian Ivan Grozny, byname of Ivan Vasilyevich, also called Ivan IV, […]

How do I know if my coolant is circulating? Also, touch the lower radiator hose, after the engine has reached operating temperature. If the lower hose is hot to the touch, coolant is circulating. If the lower hose is not hot, it’s possible the radiator is restricted. What are the disadvantages of air cooled engines? […]

Is Black Gold potting soil good? The Black Gold® Natural & Organic Potting Mix contains an excellent blend of natural ingredients that make up its base. Canadian sphagnum peat moss is able to hold efficiently water up to twenty times its weight and thus enhances the plant’s hydration. Which soil is also known as black […]

What happens if you put a compass near an electrical current? If you hold a compass near a wire through which current is flowing, the needle on the compass will be deflected. Since compasses work by pointing along magnetic field lines, this means that there must be a magnetic field near the wire through which […]

Can a solar flare destroy Earth? Is the Earth Going to be Destroyed by a Solar Flare? Whether or not they reach the Earth does not depend on the size of the flare, but depends only on where on the Sun the flare occurred. Fortunately, no matter what, flares do not have a significant effect […]

Why is it important to know the difference between observation and inference? Background information: Students often find it difficult to tell the difference between making an observation and making an inference. It is important to understand that an observation is something that can be easily seen whereas an inference is a guess or idea that […]