How do you know if you are biased? A biased author may not pay attention to all the facts or develop a logical argument to support his or her opinions. Bias is when a statement reflects a partiality, preference, or prejudice for or against a person, object, or idea. Much of what you read and […]
Why are sine waves important?
Why are sine waves important? The sine wave is important in physics because it retains its wave shape when added to another sine wave of the same frequency and arbitrary phase and magnitude. It is the only periodic waveform that has this property. This property leads to its importance in Fourier analysis and makes it […]
Is a skew-symmetric matrix?
Is a skew-symmetric matrix? A matrix is symmetric if and only if it is equal to its transpose. All entries above the main diagonal of a symmetric matrix are reflected into equal entries below the diagonal. A matrix is skew-symmetric if and only if it is the opposite of its transpose. All main diagonal entries […]
Can Justin Bieber really sing?
Can Justin Bieber really sing? Justin Bieber has always been an R&B singer at heart; his voice is far better at drawing you in than belting outwards. He’s never sang more comfortably than he does here, recorded close enough that you can hear the air move across his microphone. What microphone has Autotune? 5 Best […]
In which state of matter are the intermolecular forces the weakest?
In which state of matter are the intermolecular forces the weakest? gases What is the strongest intermolecular force of attraction? Dipole-dipole interactions Is hydrogen bonding stronger than London dispersion force? Dipole-dipole forces are stronger than London forces in small molecules. In larger molecules, London forces tend to be stronger than dipole-dipole forces (even stronger than […]
Do neuroscientists make a lot of money?
Do neuroscientists make a lot of money? As Salary.com reports, on average, cognitive neuroscientists earn around $84,000 per year. The lowest ten percent of earners can expect a salary closer to $63,600 per year. The highest ten percent of workers can expect to earn $111,683 per year or more. Is a neuroscience major worth it? […]
Why does the skateboard move backwards?
Why does the skateboard move backwards? If a boy is stationary on a skateboard and jumps off forwards, why does the skateboard move backwards? Momentum before the collision or separation must equal the momentum afterwards, this is called the conservation of momentum. This also means that the momentum must equal zero after he jumps off […]
Which phone is better heavy or light?
Which phone is better heavy or light? We were surprised to see how many people commented on our poll that “lighter is better”. There’s a sort of stigma around light phones – the heavier handsets just feel more durable. A phone made of polycarbonate will like outlive a metal phone while being lighter. What is […]
What do I feed a wooly bear caterpillar?
What do I feed a wooly bear caterpillar? They include almost anything that isn’t a grass or a tree. Woolly caterpillars prefer to feed on lambs quarters, violets and clovers. They also eat dandelions, nettles, sunflower, burdock, yellow and curly docks, and most wild plants. How do you keep a wooly bear caterpillar alive? Gather […]
How does water enter and leave the atmosphere?
How does water enter and leave the atmosphere? Heat from the Sun causes water to evaporate from the surface of lakes and oceans. This turns the liquid water into water vapor in the atmosphere. Plants, too, help water get into the atmosphere through a process called transpiration! Water can also get into the atmosphere from […]