Usually, with science homework help you learn some essential facts about life like about forces that work in our world or molecular structure. But it is often very formal and not exciting. What about fun facts that will make science more interesting?
1. Babies have more bones than adults
At birth, babies have approximately 300 bones and cartilage between them. This flexibility allows them to pass through the birth canal, and also allows them to grow quickly. Many bones fuse with age. There are 206 bones in an average adult skeleton.
2. During the summer, the Eiffel Tower can reach 15 cm higher
Thermal expansion is the movement of particles in a substance when it is heated up. This is what is called a thermal expansion. A drop in temperature can cause it to contract. For example, the mercury level in a thermometer will rise and fall as the mercury volume changes with the temperature. This effect is strongest in gases, but it also occurs in liquids and solids like iron. This is why large structures like bridges have expansion joints that allow them to expand and contract without causing damage.
3. The Amazon rainforest produces 20% of Earth’s oxygen
The atmosphere is composed of approximately 78% nitrogen and 21% oxygen. There are also small amounts of other gases. Most living organisms on Earth require oxygen for survival. They convert it into carbon dioxide when they breathe. Photosynthesis is a way for plants to replenish oxygen levels on the planet. This process converts carbon dioxide and water into energy and releases oxygen as a byproduct. The Amazon rainforest covers 5.5 million km2 (2.1 million sq miles). It absorbs large amounts of carbon dioxide and cycles significant quantities of oxygen.
4. Some metals explode when they come in contact with water
Certain metals, such as potassium, sodium and rubidium, oxidize (or tarnish) quickly when exposed to oxygen. Dropping them in water can cause explosions. Chemical stability is a goal for all elements. This means that they must have an outer electron shell. Metals are known to lose electrons in order to achieve this. Alkali metals only have one electron in their outer shell, which makes them extremely eager to pass this unwelcome passenger on to another element through bonding. They form compounds with other elements so easily that they can’t exist in their own right.
5. 6 billion tonnes for a teaspoonful of neutron stars
A neutron star is a remnant of a large star that has run out of fuel. A supernova occurs when a dying star explodes, and its core collapses under gravity to form a super-dense neutron star. The staggeringly large solar masses of galaxies or stars are measured by astronomers in solar masses. This is equivalent to 2 x 1030 kg/4.4 x 1030 lbs. The typical neutron star has a mass up to three solar masses. This is compressed into a sphere of approximately ten kilometers (6.2 miles), which results in some of the most dense matter in the universe.
6. Every year, Hawaii moves 7.5 cm closer to Alaska
The Earth’s crust has been split into huge pieces known as tectonic plates. These plates move in constant motion due to currents in Earth’s upper crust. Hotter, denser rock rises and then cools and sinks. This creates circular convection currents that act as giant conveyor belts that slowly shift the tectonic plates. Hawaii is located in the middle Pacific Plate. It slowly drifts north-west towards the North American Plate and back to Alaska. The speed of the plates is similar to how fast our fingernails grow.
7. Chalk is made of trillions upon trillions of microscopic plankton fossils
Coccolithophores are tiny single-celled algae that have been living in the oceans of Earth for over 200 million years. They surround themselves with tiny plates of calcite (coccoliths), which is unlike any other marine plant. Coccolithophores formed in thick layers on ocean floors, covering them with a white ooze. This was just 100 million years ago. The pressure from the ocean floor pushed the coccoliths into rock. This created chalk deposits like the Dover white cliffs. Coccolithophores is just one example of many prehistoric species that are preserved in fossil form. But how can we determine how old they really are? Rock forms in horizontal layers over time. Older rocks are at the bottom, while younger rocks are near the top. Paleontologists can approximate the age of a fossil by studying the rock from which it is found. Based on radioactive elements like carbon-14, carbon dating gives a more precise estimate of a fossil’s age.
8. It will be too hot to sustain life on Earth in 2.3 billion years
The Sun will get brighter and more intense over the next hundreds of millions of year. Temperatures will rise to the point that our oceans will evaporate in just 2 billion years. This will make it impossible for Earthlings to live. Our planet will soon become a desert like Mars. Scientists predict that Earth will eventually be engulfed by the Sun as it grows into a red giant over the next few billion years.
9. Infrared cameras are almost impossible to detect polar bears
The heat that is lost by a subject can be detected using thermal cameras, but polar bears have mastered the art of conserving heat. A thick layer of blubber beneath the skin keeps bears warm. They can withstand even the coldest Arctic days thanks to their dense fur coat.
10. It takes light 8 minutes and 19 seconds to travel from Earth to Sun
Light travels 300,000 km (186,000 miles per second) in space. It takes a lot of time to cover the 150 million kilometres (93,000,000 miles) between us, the Sun, and this speed. Eight minutes is still a lot compared to the five-and-a-half hours required for the Sun’s light to reach Pluto.
11. The human race could be reduced to the size of a sugar cube if all the space in our atoms was removed
Although the atoms that make up our world appear solid, they are actually 99.99999 percent empty space. An atom is composed of a small, dense nucleus, surrounded by electrons and spread over a large area. Because electrons behave like waves, they are particles as well. The crests and the troughs of these waves are what make electrons exist. Instead of being located in a single point, electrons are distributed over multiple probabilities. This is called an orbital. These electrons occupy huge amounts of space.
12. Stomach acid can dissolve stainless steel
The highly corrosive acid hydrochloric acid, which has a pH between 2 and 3, affects the digestion of food. Your stomach lining is also affected by this acid. It secretes an alkali bicarbonate solution to protect itself. It is necessary to replace the lining every day, and it completely renews itself every four.
13. The Earth is a huge magnet
The Earth’s inner core is made up of a sphere filled with solid iron and surrounded by liquid iron. Temperature and density variations create currents in the iron that in turn produces electrical currents. These currents, paired up by the Earth’s rotation, create a magnetic field that is used worldwide by compass needles.
14. Venus is the only planet that can spin clockwise
Our Solar System began as a swirling cloud made of gas and dust. It eventually became a spinning disc with our Sun at its centre. All the planets orbit the Sun in roughly the same direction because of this common origin. They all also spin in the same direction (counterclockwise, if observed from above), except Uranus & Venus. Uranus spins on its back, while Venus spins in the opposite direction. These planetary anomalies are most likely caused by gigantic asteroids that have thrown them off track in the distant past.
15. A flea can accelerate quicker than the Space Shuttle
Jumping fleas can reach heights of eight centimetres (three in) in one millisecond. Acceleration refers to the change in speed over time. It is often measured in ‘gs. One g equals the acceleration caused on Earth by gravity (9.8m/32.2ft per square second). Fleas can experience 100g while the Space Shuttle was able to reach around 5g. This is due to a rubber-like protein that allows it to store and release energy just like a spring.
To Find Out secrets of black hole and another curious objects , NASA launches X Ray observatory
IXPE, the primary space X-beam observatory of its sort, has been worked to concentrate on probably the most enthusiastic articles known to mankind amazing molecule jets regurgitating from taking care of dark openings, the remainders of detonated stars, and considerably more.
SpaceX dispatched the space apparatus on its $214 million mission from Kennedy Space Center.
NASA’s most up to date X-beam observatory soared into space Thursday to reveal insight into detonated stars, dark openings and other vicious high-energy situation developing in the universe.
The National Aeronautics and Space Administration (NASA) on December 9, 2021, dispatched another X-Ray mission that targets opening the insider facts of the dark opening and other outrageous inestimable items. NASA’s new X-beam space observatory is one of its sort and is known as the Imaging X-beam Polarimetry Explorer or IXPE.
The mission to dispatch NASA’s X-Ray observatory took off at 1.00 am EST on board SpaceX’s Falcon 9 rocket at Kennedy Space Center in Florida. The aggressive mission is a joint effort among NASA and the Italian Space Agency. While reporting the dispatch via web-based media, the US Space Agency said that the new journey will open the mysteries of probably the most vigorous articles, from dark openings to neutron stars.
Researchers said the observatory — really three telescopes in one — will divulge the most sensational and outrageous pieces of the universe as at no other time.
The primary space X-beam observatory of its sort, IXPE has been worked to concentrate on the absolute most vigorous items known to man incredible molecule jets regurgitating from taking care of dark openings, the leftovers of detonated stars, and substantially more.
The mission to dispatch NASA’s X-Ray observatory took off at 1.00 am EST on board SpaceX’s Falcon 9 rocket at Kennedy Space Center in Florida. The driven mission is a joint effort among NASA and the Italian Space Agency. While declaring the dispatch via web-based media, the US Space Agency said that the new journey will open the privileged insights of probably the most vigorous articles, from dark openings to neutron stars.
The dispatch of IXPE has likewise denoted an intense and exceptional advance forward for the X-beam cosmology. It will likewise illuminate the analysts and researchers more with regards to the exact idea of Cosmic X-beam sources that can be learned by concentrating on their brilliance and shading range alone.
Concerning NASA’s X-Ray observatory-IXPE
IXPE will likewise be the US Space Agency’s first mission to investigate the polarization marks of an assortment of X-beam sources.
NASA’s IXPE incorporates three indistinguishable space telescopes with touchy identifiers that are equipped for estimating the polarization of inestimable X-beams. Each telescope has a bunch of settled, chamber molded mirrors that will gather X-beams and will take care of them to an identifier that catches an image of approaching x beams and measures both the course and measure of polarization.
IXPE or Imaging X-beam Polarimetry Explorer isn’t quite as large or solid as the Chandra x-beam observatory-NASA’s lead X-beam telescope. Notwithstanding, as IXPE needs imaging power, it can make up by seeing a part of astronomical X-beam sources that have remained to a great extent neglected up to this point Polarization.
How IXPE will help researchers in opening insider facts of baffling items in space?
The outcome will likewise permit the researchers in addressing the basic inquiries concerning very perplexing conditions in space where the electric, gravitational and attractive fields are at their cutoff points.
Researchers, by examining the energized X-beams with IXPE, will actually want to look further into the design and conduct of divine articles, general conditions just as how the material science of X-beams become.
A bird’s-eye view of farm fires in Haryana, Punjab since 2016
Farm fires remain as spread out as before in Punjab and Haryana, but with a gradual reduction in numbers over the last five years, barring 2020, data show.
Satellites detected nearly one lakh fire counts in 2016 in October and November, more than 40 per cent than 2015.
From then on, the counts came down every year till 2020. The number of farm fires last year was 20 per cent lower than 2016, but 60 per cent higher than 2019.
LESS IN NUMBERS, BUT EXTENSIVE IN AREA
The year 2017 recorded a big drop of 32 per cent in stubble burning across Haryana and Punjab, followed by 24 per cent reduction in 2019, an analysis by India Today’s Data Intelligence Unit shows.
That said, stubble-burning events are extensively spread in Haryana and Punjab despite the announcement of Rs. 2,500 an acre bonus for small and marginal farms rejecting the practice. Additionally, Punjab offers incentives to industries for buying stubble.
According to data obtained from NASA satellites, the peak has been recorded in the month of November, especially its first week, for at least the last six years.
The number of stubble burning cases in the first week of November 2016 alone stood at at 34,910, which was almost 77 per cent higher than the previous year. But the counts declined by 60 per cent in the same period of 2017.
However, the stubble-burning number changes every alternate year in the peak period of November, the DIU analysis revealed. In 2020, for instance, fire counts spurt by 60 per cent in the first week of November. In 2021 though, the cases dropped by nearly two per cent compared to the year ago.
FARM FIRES IN 2021
Considering the number of farm fires in the first week of November, the year 2021 so far ranked third with 27,941 stubble burning events after 2016 and 2020.
If the declining trend holds firm, the two states may end up with fewer cases of farm fires in October-November this year.
Punjab, Haryana, and Uttar Pradesh follow this practice to clear the fields for sowing winter crops from the last week of September to November.
There is brief window of two to three weeks between harvesting paddy and sowing the next crop.
The burning of residue depends on weather and other factors. The phenomenon in a particular period can, therefore, be recorded better through a comparison of total fire events during October and November than through day-to-day incidents.
According to reliable estimates, Punjab alone produces around 200 lakh tonnes paddy stubble. Haryana produces around 70 lakh tonnes of paddy residue every year.
(New source – https://www.indiatoday.in/diu/story/bird-eye-view-farm-fires-haryana-punjab-since-2016-1874897-2021-11-09?utm_source=Partner_aff&utm_medium=Partner_aff&utm_campaign=Partner_aff&utm_id=Partner_aff )
recently recognized mosasaur was a fish-hunting beast
Scientists at the University of Cincinnati recognized another type of mosasaur—an 18-foot-long fish-eating beast that lived 80 million years prior.
UC associate teacher instructor Takuya Konishi and his understudy, UC graduate Alexander Willman, named the mosasaur Ectenosaurus everhartorum after scientists Mike and Pamela Everhart. The mosasaur occupied the Western Interior Seaway in what today is western Kansas.
The disclosure was reported for this present week in the Canadian Journal of Earth Sciences.
The recently distinguished mosasaur checks just the second species in the sort Ectenosaurus.
“Mosasaurs in western Kansas have been all around inspected and well-informed. Those two variables make tall chances when you attempt to discover something new,” Konishi said.
Mosasaurs were gigantic marine reptiles, some as large as school transports. They possessed seas all throughout the planet during the Cretaceous time frame around the hour of Tyrannosaurus rex. On the off chance that Ectenosaurus clidastoides with its long, thin jaws looks like a gharial crocodile, Konishi said the new species is more like a bogus gharial crocodile with prominently blunter jaws.
Konishi, who instructs in the Biological Sciences Department of UC’s College of Arts and Sciences, first experienced the fossil in 2004 while functioning as an alumni understudy in systematics and development. Konishi was considering fossils of Platecarpus, an alternate sort of mosasaur away at Fort Hays State University’s Sternberg Museum of Natural History, when he perceived something odd around one example.
“It was anything but a platecarpus. The front facing bone over the eye attachment was any longer. The bones of Platecarpus ought to have had a more extensive triangle,” he said. “That was one indication.”
Konishi associated the example was a sort with ectenosaur, just a single types of which had been recognized. However, the teeth appeared to be all off-base. The currently unfilled attachments that would have contained the mosasaur’s sharp, bended teeth in the unidentified example would have stretched out around the front of its mouth, not at all like other perceived species that has an innocuous platform, the hard bulge at the front of the mouth.
For quite a long time, the fossils perplexed him.
“A few things simply stick to you and they’re difficult to give up,” he said.
Yet, the secret would need to stand by on the grounds that Konishi was occupied with completing his doctoral certificate and dispatching a scholastic vocation that would carry him to UC’s College of Arts and Sciences.
The first mosasaur fossils were found in the Netherlands 50 years before anybody utilized the expression “dinosaur.” Mosasaurs started to catch the country’s consideration after the Civil War when the country’s head scientistss, Othniel Charles Marsh and Edward Drinker Cope, started to examine Cretaceous limestone in Kansas in an organization that turned into an unpleasant public quarrel. From that point forward, Kansas has gotten widely acclaimed for mosasaur research.
Ages of specialists have come to Kansas to contemplate its examples, which are in plain view at galleries all throughout the planet.
“It’s a well known spot for mosasaur research. It’s very notable,” Konishi said. “So I figured I don’t need to be the person to put a stake. I’m certain somebody will get it. Yet, no one did.”
Ectenosaur is strange for what a small number of examples have been found in the class contrasted with other mosasaurs, Konishi said.
“In western Kansas we have more than 1,500 mosasaur examples. Out of those we can just discover one example each addressing these two types of ectenosaur,” Konishi said. “That is somewhat insane.”
At the point when Konishi affirmed with the Sternberg Museum that no different scientists were contemplating the example, he requested that they transport the fossils to UC. At the point when he opened the cautiously bubble-wrapped substance, his underlying feelings were affirmed.
“By then I had taken a gander at all the other known Platecarpus examples under the sun, so to speak. Furthermore, this example was particular from the others,” he said. “To me it was so self-evident.”
Simultaneously, Konishi’s understudy Willman asked about dealing with an exploration project. He got a UC Undergraduate STEM Experience award to assist with the ordered recognizable proof.
“I was past eager to be essential for the revelation,” Willman said.
The third creator on the investigation, Michael Caldwell, is an educator of science at the University of Alberta, Edmonton.
Willman delineated the fossils in meticulous detail to assist researchers with understanding the morphological contrasts that make the mosasaur extraordinary.
“I was extremely content with how he rejuvenated these wrecked bones,” Konishi said. “It helped present our defense exceptionally persuading to anybody that this is something new that warrants the foundation of another taxon.”
The specialists devoted the venture to the late Dale Russell, whose work has had a significant effect in North American mosasaur fossil science, Konishi said. In any case, they named the mosasaur for the Everharts, a Kansas couple who have gone through over 30 years offering their fossils to historical centers and driving examination field trips in the fossil-rich Smoky Hill Chalk.
“We’re as yet shortly of shock at the news. It’s exceptionally energizing,” Pamela Everhart said.
“It’s a significant privilege,” said Mike Everhart, creator of “Expanses of Kansas” about mosasaurs and other ancient life that possessed the Western Interior Seaway during the Cretaceous Period.
Mosasaurs are extremely uncommon to him, he said.
“The seas would not have been a protected spot for swimming in the Cretaceous,” he said. “Mosasaurs were the top hunter in the sea during those occasions.”
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