Why does black make me look thinner? This illusion could explain why we think black is more flattering than white; black shapes appear thinner than white shapes, possibly because the contours of black objects have more definition. A lighter color object will have lines, shapes, and perhaps partitions on it that are very visible to […]
Can you have a coefficient of restitution greater than 1?
Can you have a coefficient of restitution greater than 1? It normally ranges from 0 to 1 where 1 would be a perfectly elastic collision. It can be more than 1 if there is an energy gain during the collision from a chemical reaction, a reduction in rotational energy, or another internal energy decrease that […]
How do you know if a property is intensive or extensive?
How do you know if a property is intensive or extensive? Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. Physical properties can be measured without changing a substance’s chemical identity. Which […]
Why soft iron is used for making the core of an electromagnet?
What are the reasons of non-sampling errors?
What are the reasons of non-sampling errors? Some of the major reasons that lead to the non-sampling errors are: Inadequate data specification or data being inconsistent with the objective of survey or census. Inadequate methods of data collection. Duplication of a subject in the survey. Lack of trained investigators. Lack of supervision of primary staff. […]
Do you weigh more on a full moon?
What is the biggest gland of the endocrine system?
What is the biggest gland of the endocrine system? Your pancreas (say: PAN-kree-us) is your largest endocrine gland and it’s found in your belly. The pancreas makes several hormones, including insulin (say: IN-suh-lin), which helps glucose (say: GLOO-kose), the sugar that’s in your blood, enter the cells of your body. What is the most common […]
How many universes are there in a multiverse?
How many universes are there in a multiverse? in up to 11 dimensions, featuring wonders beyond our wildest imagination. And the leading version of string theory predicts a multiverse made of up to 10 to the 500 universes. Does up and down exist in space? There is an up and down in space. “Down” is […]
Is charging by conduction permanent?
Is charging by conduction permanent? Charging by conduction gives the previously uncharged object a permanent charge. An uncharged object can also be charged using a method called charging by induction. This process allows a change in charge without actually touching the charged and uncharged objects to each other. What is positive and negative charges? There […]
What CD4 stand for?
What CD4 stand for? In molecular biology, CD4 (cluster of differentiation 4) is a glycoprotein found on the surface of immune cells such as T helper cells, monocytes, macrophages, and dendritic cells. What is the normal CD4 count for a healthy person? A CD4 count is typically reported as a count of cells (expressed as […]