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09/09/2021

03/17/2020

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well come back, today our video is about,

How to Protect Yourself from corona virus,

you should Know How corona virus Spreads,

The best way to prevent illness is to avoid being exposed to this virus.
The virus is thought to spread mainly from person-to-person.
Between people who are in close contact with one another (within about 6 feet).
Through respiratory droplets produced when an infected person coughs or sneezes.
These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs.

Take steps to protect yourself,

Clean your hands often,
Wash your hands often with soap and water for at least 20 seconds especially after you have been in a public place, or after blowing your nose, coughing, or sneezing.
If soap and water are not readily available, use a hand sanitizer that contains at least 60% alcohol. Cover all surfaces of your hands and rub them together until they feel dry.
Avoid touching your eyes, nose, and mouth with unwashed hands.

Avoid close contact,
Avoid close contact with people who are sick
Put distance between yourself and other people if corona virus is spreading in your community. This is especially important for people who are at higher risk of getting very sick.

Take steps to protect others from this virus,

Stay home if you’re sick,
Stay home if you are sick, except to get medical care.

Cover coughs and sneezes,
Cover your mouth and nose with a tissue when you cough or sneeze or use the inside of your elbow.
Throw used tissues in the trash.
Immediately wash your hands with soap and water for at least 20 seconds. If soap and water are not readily available, clean your hands with a hand sanitizer that contains at least 60% alcohol.

Wear a facemask if you are sick,
If you are sick: You should wear a facemask when you are around other people (e.g., sharing a room or vehicle) and before you enter a healthcare provider’s office. If you are not able to wear a facemask (for example, because it causes trouble breathing), then you should do your best to cover your coughs and sneezes, and people who are caring for you should wear a facemask if they enter your room.

If you are NOT sick: You do not need to wear a facemask unless you are caring for someone who is sick (and they are not able to wear a facemask). Facemasks may be in short supply and they should be saved for caregivers.

Clean and disinfect,
Clean AND disinfect frequently touched surfaces daily. This includes tables, doorknobs, light switches, countertops, handles, desks, phones, keyboards, toilets, faucets, and sinks.
If surfaces are dirty, clean them: Use detergent or soap and water prior to disinfection.

stay safe, goodbye,

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03/17/2020

03/14/2020

what would happen if all insects on Earth disappeared

Humans might have built civilizations, but insects own the world. After all, over half of all known species are insects. So if they all suddenly vanished, you'd notice. No more summers of singing cicadas and flickering fireflies. No bees to pollinate apple, cherry, peach, or almond trees. No one to make honey. A world without insects means a world with empty grocery-store shelves. But that would be just the beginning of our problems. Now, it's impossible to say exactly what would go down, but here's a worst-case scenario of what could happen if all the insects disappeared.

There are a few insects most people would be happy to see vanish. Like mosquitoes. They kill hundreds of thousands of people every year by transmitting malaria, West Nile virus, and other diseases. But if they disappeared tomorrow, we might actually miss them. There are over 3,000 species of mosquitoes on Earth, all of which are food to birds, bats, frogs, and other animals. No more mosquitoes means these creatures and the animals that eat them could go hungry. The same goes for the dreaded cockroach, a protein-packed meal for birds, rodents, and even humans in some parts of the world. If we lost all 4,400 species of roach, entire ecosystems would struggle to survive. Believe it or not, we'd have even worse troubles ahead since we'd face a serious p**p problem without one of the world's greatest recyclers, the dung beetle.

You see, history has taught us exactly what happens when these critters can't do their job. Back in 1788, the British introduced cattle to Australia, and these cows p**ped a lot. Each one p**ps enough to fill five tennis courts every year. But while the dung beetles back in Britain would eat and break down cow poo, the native Australian beetles wouldn't touch the stuff because they evolved to munch only on dry, fibrous marsupial dung. So the cow p**p piled up. By 1960, the cattle had carpeted 500,000 acres of pasture in dung. That's enough to cover over half of Rhode Island, and while a little bit of p**p is great for fertilizer, this ocean of dung would flood plants with nitrogen, making it impossible for anything to grow. So, imagine if all 8,000 species of dung beetle, plus other doo-dining insects, like flies, vanished worldwide. The land would be knee-deep in you know.

Farmland, forest, and desert would all collapse, and floating throughout would be loads of corpses. You see, most animals won't eat dead bodies. That's where flesh-eating beetles, aka dermestids, and other corpse-munching insects come in. Over 500 species of these grisly undertakers live worldwide, devouring dead flesh until nothing but bone remains. Without them, there would be fewer custodians around to clean up the mess. Sure, there would still be hungry vultures and bacteria around to help, but it wouldn't be enough.

So, that's where we could end up in an insect-less world. Starving to death while drowning in a sea of p**p and corpses.

what would happen if all insects on Earth disappeared Humans might have built civilizations, but insects own the world. After all, over half of all known spe...

03/13/2020

how ancient wars were fought,

Ancient warfare is war as conducted from the beginnings of recorded history to the end of the ancient period

Early Warfare & Military Tactics ,
Warfare certainly did not begin in 2700 BCE, however. The earliest pictographs of armies at war come from the kingdom of Kish, dated to about 3500 BCE. Jericho, which, along with Uruk, has a claim to the title of the world’s oldest city, has provided archaeologists with solid evidence that a fortified city stood on the site before 7000 BCE. The walls of the fortress were 10 feet thick and 13 feet high surrounded by a moat 30 feet wide and 10 feet deep, strongly suggesting the importance of defense.

The simple bow was in use in Mesopotamia as early as 10,000 BCE and cemeteries from northern Mesopotamia to Egypt attest to early warfare on a fairly significant scale. Evidence from a conflict which took place at Jebel Sahaba, Egypt, at the so-called Site 117, 59 skeletons were uncovered, all of whom show clear evidence of violent death at about the same time. War in ancient Mesopotamia was waged by infantry shock troops until the introduction of the composite bow from Egypt.

By 1782 BCE, Lower Egypt had been largely taken by the Hyksos, a Semitic people of unknown origin, who introduced superior technological advances into Egypt. Along with the war chariot, bronze weapons, and new tactics, the Hyksos brought the advance of the composite bow. Prior to the coming of the Hyksos, the Egyptian army had used "simple bows of wood or cane with a range of around 33 feet while the composite bow was "capable of delivering a mighty blow out to 656 feet". The development of the composite bow would change the way in which war was waged in that shock troops who were massed closely together made easy targets for archers while looser formations invited decimation by opposing shock troops. This led to changes in battle formations generally and the development of military tactics.

Armies & Their Development,
Armies contained two types of infantry: Shock Troops, whose purpose was to close with the opposing forces and try to break their lines, and Peltasts who were more mobile and moved in a looser formation in order to fire long-range weapons at the enemy. According to the historian Simon Anglim, et.al., "Infantry is the backbone of any army, being the one unit that can attack or defend equally effectively. The majority of battles have turned on the infantry's ability to close with the enemy and kill him" and this holds true, in most cases, even after the introduction of cavalry units and the war chariot.

The earliest armies were relatively small corps of shock troops until the introduction of peltast units. At the Battle of Megiddo in 1479 BCE the Egyptian army numbered 20,000; by the time Shalmaneser III ruled over the Assyrian Empire in 845 BCE armies had grown in mass and size. Shalmaneser's forces in his campaigns numbered over 120,000. The Assyrians required large armies owing to their policy of territorial expansion and ruthless suppression of revolt against central rule and, in this, they epitomize the underlying cause of war: the tribe mentality.

Military Formations & Technology,
The earliest formation was the phalanx which was first employed in Sumer c. 3000 BCE and would become the standard for infantry formations for thousands of years. It was made famous at the Battle of Marathon in 490 BCE when the Greeks employed it effectively to rout the Persians, was perfected by Alexander the Great c. 332 BCE on his campaigns, and was made more formidable by the armies of Rome. The phalanx was employed, in one form or another, by most of the fighting forces in the ancient world. The Greeks employed cavalry to protect the flanks and the Thebans used a combination of cavalry, infantry, and peltasts. The introduction of the war chariot and, later, the use of elephants in battle, supplemented the role of the infantry but never diminished their importance.

War has been an important factor in creating states and empires throughout history and, equally so, in destroying them. Major advances in science, technology, and engineering have been brought about through necessity during times of war. It is written that the army of King Croesus of Lydia (560-547 BCE) was once stopped in their advance by the Halys River which seemed impossible to cross. The philosopher Thales of Miletus, a member of Croesus’ army, had a crew of engineers dig a channel upstream, giving it a crescent shape, “so that it should flow round the back of where the army was encamped, being diverted in this way from its old course and passing the camp, should flow into its old course once more". Once the river was made shallow in both channels it was, of course, easy to cross.

Stories such as this provide examples of the importance of engineers in the practice of war. The increasing development of military tactics or, in this case, geographical obstacles, necessitated a corps of engineers as a regular part of any army. The armies of Alexander the Great and of Rome are well known for their use of engineers in warfare most notably by Alexander at the Siege of Tyre (332 BCE) and by Julius Caesar at the Siege of Alesia (52 BCE). Both of these generals took full advantage of every resource at their disposal to crush their enemy and advance their cause and engineers, along with technological advances such as the siege tower, became a particularly important means to achieving those ends.

Armageddon,
With advancements in technology, war has increasingly wreaked chaos and destruction upon the lives and cities of combatants and non-combatants and, true to the origins of the name, has sown confusion throughout time. The first armed conflict in history recorded by eyewitnesses was the Battle of Megiddo in 1479 BCE between Thutmose III (1458-1425 BCE) of Egypt and an alliance of former Egyptian territories under the leadership of the King of Kadesh.

The Hebrew name for Megiddo is `Armageddon' well known from the biblical Book of Revelation as the site of the final battle between good and evil and has come to be used as a general term for a dramatic situation involving the end of the world. If one regards the predictions of Revelation as trustworthy then, as the historian Davis notes, "The foundation for one of the great ironies of history is thus foretold: the beginning and the end of military history occur at the same site". However that may be, war continues as a common extension of political disputes in modern times and, as human beings never radically change in disposition, will continue be employed in the future as it has been in the past; fueled and justified by the ages-old tribe mentality.

how ancient wars were fought, Ancient warfare is war as conducted from the beginnings of recorded history to the end of the ancient period Early Warfare & Mi...

03/09/2020

what would happen to you if a Whale swallowed you up?

You must have heard and seen in movies, Sea divers often encounter whale shark and whale fish. It never happens that a marine animal swallow a human, and that person will come back alive from the mouth of this marine animal. Not in movies and not in real life. Shark fish, a symbol of fear in the sea, tear humans apart. But on the contrary, the whale fish has no such interest, and not aggressive. Instead of attacking, it just opens its mouth. Due to which many animals are drawn inside its mouth.

Size of a Whale,

The whale is much larger than humans and can easily swallow many humans at once. The blue whale is considered the largest animal in the world. Blue whales are generally 80 to 100 feet long. The tallest whale fish record ever was 108 feet long. Only the weight of the blue whale’s tongue is equal to the elephant’s. According to research, these giants weigh usually up to 200 tonnes or around 441,000 pounds. The blue whale’s heart is so big that you will be surprised to hear it is about 5 feet tall, 4 feet wide, and weighs 400 pounds.

However, the Blue Whales physical system does not allow them to swallow such a large human. However, the other whales of its family such as s***m whales and whale shark can easily tear and swallow a human. Here you can be discovered many factors about Blue Whale.

Some reports came out in 1981, the whale swallowed a man named James Burtle, who traveled by sea. James’ boat was attacked by a whale and swallowed it. The next day the other crew killed the whale. They pulled the fish and brought it to the ground and when they tear its stomach, James was found unconscious but alive inside. James’s face and arms turned white due to the acid in the stomach of the whale. Even, he was blind.

After some time, people began to question whether James was really swallowed by the whale. If he was really swallowed, so they thought the acid in the whale could do more harm to James.

Let us tell you how detailed science has answered this question in modern times. Suppose a whale fish swallowed an alive human, first, it will encounter the dangerous teeth of the whale. In fact, the teeth in the mouth of the s***m whale are very sharp and each tooth is 20 cm long. This tooth looks like a sharp knife used by a chef. There are 40 to 50 teeth in the mouth of the whale. If the whale has swallowed any person, these teeth cut into pieces everything

Let Suppose, a lucky person escaped from these teeth and slipped into the throat of a whale. It will be dark here and it will be very difficult to breathe due to lack of oxygen and high quantity of methane. After that, the saliva in the mouth of the whale will push the man down. Due to the hydrochloric acid now there place, this person will feel his skin melt. Then this person will fall into the whale’s first and largest gastrointestinal tract. Here he will see small marine animals from which light erupts and the whale eats them very fondly.


Whenever an item arrives in the stomach, these animals come to see it, whether they can eat it or not. After that, the fluid in the gastrointestinal tract will push human into the second, and then the third gastrointestinal tract. During that time the acid would have melted all over his skin and only the bones would remain. At any given moment, the whale will drain its waste from the body.

All this research has shown that no one can remain in this state after the swallowed by Whale, to come back and tell the stories of his journey. Even James, who made such claims, science also called him a liar. Fortunately, whale fishes have no interest in swallowing humans. However, nothing can be said about the whale shark. If you ever agree to go underwater, stay away from whales and the pressure of the water pushes you into his open mouth.

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03/05/2020

Water pollution is the contamination of water bodies, usually as a result of human activities. Water bodies include for example lakes, rivers, oceans, aquifers and groundwater. Water pollution results when contaminants are introduced into the natural environment.

main source of water pollution is plastic, plastic bottles, etc

we will only discuss water pollution made by plastic in this video,

We're surrounded by plastic. It’s in the single-use packaging we discard, the consumer goods that fill our stores, and in our clothing, which sheds microplastic fibers in the wash.

In the first decade of this century, we made more plastic than all the plastic in history up to the year 2000. And every year, billions of pounds of more plastic end up in the world's oceans. Studies estimate there are now 15–51 trillion pieces of plastic in the world's oceans — from the equator to the poles, from Arctic ice sheets to the sea floor. Not one square mile of surface ocean anywhere on earth is free of plastic pollution.

The problem is growing into a crisis. The fossil fuel industry plans to increase plastic production by 40 percent over the next decade. These oil giants are rapidly building petrochemical plants across the United States to turn fracked gas into plastic. This means more toxic air pollution and plastic in our oceans.

We need urgent action to address the global plastic pollution epidemic.

Unfortunately, plastic is so durable that the EPA reports “every bit of plastic ever made still exists.” All five of the Earth's major ocean gyres are inundated with plastic pollution. The largest one has been dubbed the Great Pacific Garbage Patch.

Thousands of animals, from small finches to blue whales, die grisly deaths from eating and getting caught in plastic.

Fish in the North Pacific ingest 12,000 to 24,000 tons of plastic each year, which can cause intestinal injury and death and transfers plastic up the food chain to bigger fish, marine mammals and human seafood eaters. A recent study found that a quarter of fish at markets in California contained plastic in their guts, mostly in the form of plastic microfibers.
Sea turtles can mistake floating plastic garbage for food. They can choke, sustain internal injury and die — or starve by thinking they’re full from eating plastic. Tragically, research indicates that half of sea turtles worldwide have ingested plastic. New studies find plastic pollution is so pervasive on many beaches that its affecting their reproduction.
Hundreds of thousands of seabirds ingest plastic every year. Plastic ingestion reduces the storage volume of the stomach, causing starvation. It’s estimated that 60 percent of all seabird species have eaten pieces of plastic, with that number predicted to increase to 99 percent by 2050. Dead seabirds are often found with stomachs full of plastic, reflecting how the amount of garbage in our oceans has rapidly increased in the past 40 years.
Marine mammals ingest, and get tangled up in, plastic. Large amounts of plastic debris have been found in the habitat of critically endangered Hawaiian monk seals, including in areas that serve as pup nurseries. Entanglement in plastic debris has also led to injury and mortality in the endangered Steller sea lion, with packing bands the most common entangling material. Dead whales have been found with bellies full of plastic.

38 million plastic bottles go to landfill each year in America alone. 24,000,000 liters of oil are needed to produce these billions of plastic bottles. The average American consumes 167 bottles of water per year. Bottled water is the second most popular beverage in the United States.

so we should avoid using plastic bottles, to save Marine life,

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03/05/2020

what would happened if dinosaurs were still alive?

If dinosaurs were still around, what might have happened to the world? Will there be a change for the better or worse?

lets find out,

Without a doubt, dinosaurs can cause serious damage, especially when they are aggressive. This is due to their extensive height and immense weight. In fact, the size of the dinosaurs was compared to the size of the chickens because of the lesotho saurus, but there are also dinosaurs that stretch more than 40 meters and weigh more than 70 tons.

With just one small mistake, they can be triggered and angered. They can easily ruin infrastructure. They can cause fires when they fiddle with electrical wires. They might even shake a certain part of the land and leave cracks on it.

This may or may not happen because it still depends on the scenario, but there is a possibility that dinosaurs might think of us as food. Knowing what human beings do when they are curious about new things, they may anger the dinosaurs, especially when they see them as an experiment. Or worse, these dinosaurs might devour us just like other animals. They might eat off our heads or chew on our arms and legs. We might be their target for as long as they could survive. Thus, their existence might also be the cause of death of human beings.

No matter how high or low, each country will experience heavy traffic if the dinosaurs were still around. Their massive bodies would flood streets and cause overcrowding. They will have to wait in line for the go signal as well. Surely, dinosaurs will replace trucks on the jam-packed streets.

Dinosaurs were given the special treatment because they were one of a kind. They were studied thoroughly because they could be the key to unsolved mysteries that still linger around today. They were also a rare sight. If they were still around, would that remain the same? Maybe. Maybe not.

Just like dogs and cats, they may be appreciated, but they would also be considered normal and ordinary. They are not that special, particularly when they do not have an extraordinary breed. For instance, we know that stray cats and street dogs exist, but do we take care of them as much as we take care of Persian cats and pugs? Perhaps, with dinosaurs, that could happen, too.

Human beings depend on other animals for food since we need to eat to survive. We need the nutrients from pork, beef, chicken, and seafood to have healthy bodies. Dinosaurs see these animals or prey as a necessity as well. If they were still here, they would probably be our hunting enemies. They would fight with us to get food. It would be challenging to catch these animals since the dinosaurs would get to them before us. They would have them fresh.

If dinosaurs were still here on Earth, human beings would be extra careful with their plans. We would think twice before doing anything to avoid getting hurt. Our normal routines would be filled with fear and terror because dinosaurs could act up and attack us. We could not go shopping without the thought that they may be waiting for us at the corner of the store. We could not watch a movie without thinking that they may ruin the screen and pop their head out. We could not travel around the world fearlessly, especially to appreciate nature, because they could eat us alive. In short, life would not be a simple walk in the park, particularly since parks would also be risky.

Without a doubt, if they were still here, we would live in a Jurassic world. Perhaps, the scenes in the Jurassic Park and Jurassic World might turn into reality. Dinosaurs would roam around carelessly, threatening our safety. Though not all dinosaurs would be harmful and toxic. Some could be friendly, too, just like those projected in the movies. There would be blameless ones fighting the aggressive dinosaurs to protect other life forms. It would be like living on a safari, but it would be more risky and challenging. We would be unfolding more mysteries in the world we claim to know.

Live on Earth would be dramatically different if dinosaurs were still alive today. There would be chaos or imbalance in the environment, because we would all still need to cope with their presence. To give an example, if ordinary animals can be the root of many communicable diseases, there is a huge possibility that dinosaurs can spread such illnesses as well.

Dinosaur diseases would definitely exist. There would be dinosaur germs, so we would need dinosaur medical experts. Of course, like the names of these dinosaurs, the names of the diseases would also end with -osis or -ous. There would be minor illnesses, such as cough, fever, bites, or colds caused by them. Or, major illnesses that need special assistance like cancer or tumor.

As stated by scientists, the smartest dinosaur ever to walk on Earth is the Troodon. Its brain was proportional to its body weight, unlike other dinosaurs that had a smaller one. Its intelligence is even compared to a modern bird. If it was given the opportunity to evolve, or one of its relatives, it could earn a place in the field of politics. It could be the next president or prime minister of a powerful nation. Or to start off small, it could be a mayor of a flourishing city. The point is – it can be as clever as a human being!

There is one assumption about dinosaurs that human beings might be able to dominate them. If we discover the secret to taming them, we could be friends with them. They would not see us as pure meat. They would learn to respect and obey us. They could be our modern day helpers that would run all our errands. For instance, they could help us in factories by carrying heavy equipment from one place to another. They could help us to travel from here to there. They could also transport goodies and packages to their rightful owners. They could clean buildings and roads rather than wreck them.

so if dinosaurs were alive then we were unable to live on earth.
https://youtu.be/e8KaFk5qCcU

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03/03/2020

(READ THIS OR SIMPLY WATCH THE VIDEO ON YOUTUBE)

History of dinosaurs, on earth,

lets begin,

Dinosaurs first appeared between 247, and 240 million years ago. They ruled the Earth, for about 175 million years, until an extinction event 65.5 million years ago, wiped out all of them, expect for the avian dinosaurs. Scientists don't agree entirely, on what happened, but the extinction likely was a double, or triple whammy involving an asteroid impact, choking chemicals from erupting volcanoes, climate change and possibly other factors.

Only the big, classic dinosaurs are extinct. Birds are living dinosaurs, most experts believe.

Fossils show that some of the more advanced dinosaurs, had feathers or feather-like body covering, but many of them didn't fly, and probably didn't even glide. Archaeopteryx, which was for a long time considered, to be the first bird, could likely launch itself from the ground, but probably couldn't fly far, feathers, likely helped these bird-like dinosaurs, stay warm as juveniles, or send signals to other individuals.

Many people think extinct flying reptiles called pterosaurs were dinosaurs. They were dinosaurs' closest relatives, but technically ,not dinosaurs. Pterosaurs had hollow bones, relatively large brains and eyes, and, of course, the flaps of skin extending, along their arms, which were attached to the digits on their front hands. The family includes Pterodactyls, with elaborate, bony head crests, and lack of teeth. Pterosaurs survived up, until the mass die-off, 65 million years ago, when they were went, the way of the dodo, along with marine reptiles, and other non avian dinosaurs.

Dinosaur fossils were first recognized in the 19th century. In 1842, paleontologist, Richard Owen, coined the term dinosaur, derived from the Greek denious, meaning "terrible", or "fearfully great," and saurus, meaning "lizard" or reptile." Scientists classify dinosaurs into two orders, — Saurischians, and Ornithischians,— based on the structure of the bones in their hips.

Most of the well-known dinosaurs, — including T rex, Deinonychus, and Velociraptor, — fall into the order known as Saurischian dinosaurs. These "reptile-hipped", dinosaurs have a pelvis that points forward, similar to more primitive, animals. They are often long-necked, have large, and sharp teeth, long second fingers, and a first finger that points strongly away from the rest of the fingers.

Theropods walked on two legs, and were carnivorous. "Theropod" means "beast-footed", and they are some of the fearsome, and most recognizable dinosaurs — including Allosaurus, and T rex.

Scientists have wondered whether large theropods, — such as Giganotosaurus, and Spinosaurus — actively hunted their prey, or simply scavenged carcasses. The evidence points to the animals working together as opportunistic hunters: they would bring down prey, but also eat animals that were lying around. When fossil-hunters, found bones with bite marks on them, they wondered if theropods, engaged in cannibalism. It appears now that the animals may have, scavenged their own kind, but they didn't hunt down their own.

Sauropods, were herbivores with long heads, long necks and long tails. They were among the largest, land animals ever, but they likely had small brains. The gentle giants like leaf eating Apatosaurus, Brachiosaurus, and Diplodocus, are part of this family.

Ornithischian dinosaurs, a group that includes horned, and frilled Triceratops, spiked Stegosaurus, and armored Ankylosaurus, are more mild-mannered, plant eaters.

These dinosaurs were beaked, herbivores Smaller than the sauropods, the ornithischia, often lived in herds, and were prey to the larger species of dinosaurs. Interestingly, the ornithischia shifted from a two legged, to a four-legged posture, at least three times in their evolutionary history, and scientists think they could adopt both postures early in their evolutionary history.

The finding came about after researchers realized that theropods and Ornithischia had many anatomical features in common.

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