What is an example of screw? Some examples of the uses of a screw are in a jar lid, a drill, a bolt, a light bulb, faucets, bottle caps and ball point pens. Circular stairways are also a form of a screw. Another use of the screw is in a device known as a screw […]
Which type of wave can travel in a vacuum?
What are the 5 types of gene mutations?
What are the 5 types of gene mutations? What kinds of gene variants are possible? Missense. A missense variant is a type of substitution in which the nucleotide change results in the replacement of one protein building block (amino acid) with another in the protein made from the gene. Nonsense. Insertion. Deletion. Duplication. Frameshift. Repeat […]
Are tongue twisters good for speech?
Are tongue twisters good for speech? Tongue twisters are a great way to practice and improve pronunciation and fluency. They can also help to improve accents by using alliteration, which is the repetition of one sound. They’re not just for kids, but are also used by actors, politicians, and public speakers who want to sound […]
What is rapidly renewable materials?
What is rapidly renewable materials? The USGBC defines “rapidly renewable” as a material that’s able to regenerate itself in 10 years or less. That includes bio-based products made from plants harvested on a 10-year (or shorter) cycle. Rapidly renewable materials include linseed, straw, cotton, wheat, sunflowers, natural rubber, bamboo, and cork. Is Bamboo rapidly renewable? […]
What units are used for W?
How dangerous is the asteroid belt?
How dangerous is the asteroid belt? The danger lies not in the risk of hitting a large object. The number of objects in the asteroid belt increases steeply with decreasing size, but even at micrometer sizes the Pioneer spacecraft were hit only a few times during their passage. That is not to say that asteroids […]
What happens at the beginning of every roller coaster ride?
What happens at the beginning of every roller coaster ride? What happens at the beginning of every roller coaster ride? The car is pulled up a long hill. [The roller coaster cannot go higher than the first hill because the total energy of the roller coaster cannot increase unless energy is added.] What happens to […]
What traits are dominant and recessive?
What traits are dominant and recessive? The traits due to dominant alleles are always observed, even when a recessive allele is present. Traits due to recessive alleles are only observed when two recessive alleles are present. For example, the allele for widow’s peak is dominant and the allele for straight hairline is recessive. How do […]