Can copper wire be used as a heating element? Copper is a good conductor of heat. This means that if you heat one end of a piece of copper, the other end will quickly reach the same temperature. Most metals are pretty good conductors; however, apart from silver, copper is the best. Why is copper […]
Why is there a delay when changing channels?
Why is there a delay when changing channels? When there is a delay while changing channels before a picture appears, it is likely that the Set Top Box is having trouble locating a signal due to weak signal strength. How do I change channels without a remote? How to Change the TV Channels Without a […]
What are the three main principles of usability testing?
What are the three main principles of usability testing? Main principles of usability testing are: defining the goal, hypothesis, research questions and creating scenarios accordingly. preparing requisites based on scenarios (prototypes – never waste time creating omnicapable prototype, these can be only worth it as design presentations for clients, but not for UTs. How do […]
Is Sodium naturally occurring?
Is Sodium naturally occurring? Food and drink contents. Sodium occurs naturally in most foods. The most common form of sodium is sodium chloride, which is table salt. Milk, beets, and celery also naturally contain sodium, as does drinking water, although the amount varies depending on the source. Which fruit has high-sodium? Food Sources of Sodium […]
What pattern do most stars follow?
What pattern do most stars follow? Stars rise in the northeast and set in the northwest, moving in counter-clockwise circles around a point that’s high above the northern horizon: Half-hour time exposure facing north and slightly west, from the same location as the previous three photos. Do Stars patterns? The patterns of stars seen in […]
How is ozone important for us?
How is ozone important for us? Why is Ozone Layer important? Ozone protects the Earth from harmful ultraviolet (UV) rays from the Sun. Without the Ozone layer in the atmosphere, life on Earth would be very difficult. Plants cannot live and grow in heavy ultraviolet radiation, nor can the planktons that serve as food for […]
What time of day are shadows the longest?
Why are studies of identical twins raised in different environments extremely valuable?
Why are studies of identical twins raised in different environments extremely valuable? Why are studies of identical twins raised in different environments extremely valuable in understanding the causes of a disease? They are extremely valuable in understanding the causes of a disease, because it differentiates between nature vs. nurture. What is the rarest type of […]
Which force affects the movement of ship?
Which force affects the movement of ship? The main factors that affect the motion of the ship and its response are the shape, size and weight of the ship. These factors determine other important parameters such as the centre of gravity, the centre of buoyancy and the beam at the waterline. What are 4 Forces […]
Are noble gases each a different color?
Are noble gases each a different color? Each of the noble gasses glows in its own colour when exposed to high voltage; for example helium becomes pink, krypton glows yellow/green, xenon shines in lavender blue and argon in light blue. What does argon smell like? Argon has no smell. It is a colorless gas. It […]