Why is Venus gravity so strong? Since surface pressure is approximately the weight (mass times gravitational acceleration) of the atmosphere divided by the surface area, this means that surface pressure on Venus is very high compared to that of the Earth, by almost a factor of 100. Can humans live Jupiter? Jupiter is made of […]
How visual information is processed in the brain?
How visual information is processed in the brain? Visual information from the retina is relayed through the lateral geniculate nucleus of the thalamus to the primary visual cortex — a thin sheet of tissue (less than one-tenth of an inch thick), a bit larger than a half-dollar, which is located in the occipital lobe in […]
What is the most important property that prototype should have?
What is the most important property that prototype should have? Prototyping is all about speed; the longer you spend building your prototype, the more emotionally attached you can get with your idea, thus hampering your ability to objectively judge its merits. All prototypes should have a central testing issue. Do you ever create more than […]
Is Gold safer than cash?
Is Gold safer than cash? Gold could be far more efficient than cash at storing wealth. Interest rates remain low, meaning that your money in the bank “earns virtually nothing,” reports CNN Money. When you account for inflation, that cash may have actually lost value. Gold is recognized as a having a long-term record of […]
Do we age in space?
Do we age in space? We all measure our experience in space-time differently. That’s because space-time isn’t flat — it’s curved, and it can be warped by matter and energy. And for astronauts on the International Space Station, that means they get to age just a tiny bit slower than people on Earth. That’s because […]
What was life like during the Paleozoic Era?
What was life like during the Paleozoic Era? By the end of the Paleozoic, cycads, glossopterids, primitive conifers, and ferns were spreading across the landscape. The Permian extinction, 244 million years ago, devastated the marine biota: tabulate and rugose corals, blastoid echinoderms, graptolites, and most crinoids died out, as did the last of the trilobites. […]
Can you have a negative velocity and negative acceleration?
Can you have a negative velocity and negative acceleration? An object which moves in the negative direction has a negative velocity. If the object is speeding up then its acceleration vector is directed in the same direction as its motion (in this case, a negative acceleration). Is friction force negative? So friction is a force […]
Can be drawn into thin wires?
Can be drawn into thin wires? ductile: A material that can be drawn into wires. malleable: Means that the material can be hammered into very thin sheets without breaking. metal: An element that is a good conductor of heat and electricity. What are the two properties that make metals a good choice to use as […]
What are the organelles of cell?
What are the organelles of cell? An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins. […]
Why do my ears hurt when I swim?
Why do my ears hurt when I swim? Swimmers ear, also known as otitis externa, occurs when the canal that joins your eardrum to the external ear becomes inflamed. This inflammation is caused by moisture, such as water and bacteria, getting trapped in the ear canal. How do I unclog my eustachian tube? You may […]