Science
Refine Search
Which animals have a notochord?
- By Forinfos
- 20/12/2025
- 0 comments
In most vertebrates, the notochord transforms into different structures during the gestational period. Some creatures such as lampreys, hagfish and tadpoles retain a post-embryonic notochord. In the human embryo, the notochord forms in the third week of pregnancy. It is required to pattern the folding of the embryo, and eventually plays a role in the growth of the nucleus pulposus and intervertebral disc.\nA condition called Tornwaldt’s cyst can occur when remnants of the notochord persist along the human vertebrate. The cysts are typically small and asymptomatic, and found incidentally thro..
What is the difference between area and volume?
- By Forinfos
- 20/12/2025
- 0 comments
Calculating the area of an object involves a formula that includes the multiplication of its dimensions. For example, calculating the area of a square requires multiplying the length of a side by itself. Calculating the area of a triangle requires multiplying the triangle's base by the height and dividing that number in half. The basis of the calculation for both shapes (one dimension times the other) is the same, but different shapes require slight alterations to the basic formula.\nCalculating the volume of an object also involves a formula to multiply the dimensions, but in the case of..
What is the deepest oil well?
- By Forinfos
- 20/12/2025
- 0 comments
This oil well is owned and operated by Exxon Neftegas Ltd. The well is part of three oil fields at the site named the Sakhalin-1 fields. The development of this oil field is the combined effort of ENL, Japanese SODECO, the India-owned ONGC Videsh Ltd, and Russian-owned Sakhalinmorneftegaz Shelf and RN Astra. The wells at the shelf are expected to produce 2.3 billion barrels of oil.
How do birds lay eggs?
- By Forinfos
- 20/12/2025
- 0 comments
The egg is kept clean because it never touches the walls of the cloaca. Studies have shown that birds can pick the sex of their young based on how well they can survive. If more food is plentiful, female birds tend to have more male offspring than female. According to Eastern Kentucky University, this is accomplished by the female egg determining the sex rather than the male sperm.\nWhen it comes to the number of eggs laid, Cornell University's ornithology lab says the clutch size varies by specific species. A clutch is the number of eggs laid in one nesting attempt, and about one egg per..
What organs are near the spleen in a human?
- By Forinfos
- 20/12/2025
- 0 comments
The diaphragm is the organ that allows humans to breathe. It is an automatic function controlled by the brain. The stomach collects food before it goes to the small intestine. The pancreas, sitting behind the stomach and adjacent to the spleen, helps control blood sugar.\nThe liver filters blood coming from the digestive tract, removing chemicals and metabolizing any drugs taken before the blood goes to the rest of the body. The heart is the engine that pumps the blood.\nThe spleen works with the liver and is responsible for purifying blood and storing blood cells. It also helps the immune sys..
What are some examples of forest animals?
- By Forinfos
- 20/12/2025
- 0 comments
Jaguar is a South American word that means "the hunter that kills with a single leap." This powerful spotted cat does exactly that, its fur the perfect camouflage for blending into the forest backdrop and ambush hunting. The colorful macaws, found in shades of blue, yellow, red and green, are large members of the parrot family. They usually live high in the forest canopy and are social animals.\nWild lemurs live only on the island of Madagascar, and like macaws, spend much of their time in the canopy. Their prehensile tails, a trait they share with some monkeys, allow them to grasp branches as..
How many neutrons does nickel have?
- By Forinfos
- 20/12/2025
- 0 comments
The atom is the smallest fundamental unit retaining all the properties of an element. It consists of three primary subatomic particles: electrons, protons and neutrons. One type of atom is called a nuclide, characterized by a chemical element symbol, atomic number and mass number. The atomic number represents the number of protons while the mass number denotes the sum of the protons and neutrons in an atom. In the periodic table, the elements are arranged in increasing order based on the atomic number. Several forms of an element may exist, known as isotopes. The different isotopes of an eleme..
What did Sir Isacc Newton discover?
- By Forinfos
- 20/12/2025
- 0 comments
Sir Isaac Newton was also responsible for developing the three laws of motion that define the laws of modern physics. He also invented calculus, which helped pave the way in finding more capable ways of figuring out mathematical challenges. Newton's experiments with light resulted in him discovering the color spectrum through the use of a glass prism.
How common are rainbows?
- By Forinfos
- 20/12/2025
- 0 comments
The two fundamental ingredients to make a rainbow are airborne water particles, such as rain, mist or spray from a waterfall and light, typically sunlight. Achieving this arrangement the viewer must then find a position facing the water, but with the light source behind them. The position must result in an angle between the light ray and the observer of exactly 42 degrees. This may seem restrictive but typically the area where the water and light combine is such that countless various positions exist which provide the necessary angle. Because of this required condition, natural rainbows are mo..
What are some examples of Newtonian fluids?
- By Forinfos
- 20/12/2025
- 0 comments
The key characteristic of a Newtonian fluid is a constant viscosity at any range of stresses. The viscosity can be thought of as the thickness of a fluid, or the resistance to flow it possesses. A non-Newtonian fluid is just the opposite, it can have a drastically different viscosity at different stress levels. A common example is whipped cream; the longer it is mixed, the thicker and more solid it becomes.