NguyenHoangNam
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Best device for Back to school and working
If you're looking for a tablet, for school or work you've probably noticed there are a ton of options out there. So i am going to take a closer look at three popular choices: the Apple iPad (9th Generation), the Lenovo Tab M11, and the Samsung Galaxy Tab S6 Lite. Each of these tablets has its own strengths, so let’s break down what they offer and how they differ to help you figure out which one might be the best fit for you.
By NguyenHoangNamabout a year ago in Families
Ultimate Guide to Choosing the Top 3 Video Doorbells for Home Security
When it comes to securing your home and enhancing convenience, selecting the right doorbell can make a significant difference. With advancements in technology and various features now available, it's crucial to choose a doorbell solution that fits your needs., I want to share you about three really cool doorbell options that cater to different needs. Whether you’re looking for security, tech features, or something easy to install, I’ve got you covered. Let’s dive right in!
By NguyenHoangNamabout a year ago in Families
The Ultimate Air Fryer Showdown: Ninja and Instant Vortex Compared
So you’re thinking about getting an air fryer—great choice! These nifty gadgets let you enjoy crispy, “fried” foods with way less oil. But with so many options out there, it can be tricky to pick the right one. Today, we’re checking out three popular models: the Ninja Air Fryer Pro 4-in-1, the Ninja Max XL Air Fryer, and the Instant Vortex Plus 4QT Air Fryer. Each one has its own strengths, so let’s break down what makes each one special and see which might be the best fit for you.
By NguyenHoangNamabout a year ago in Families
The Earth - Beautiful Planet
Planet Earth is the home of every lifeform, known to us, in the universe. Its age is about 1/3 of the age of the universe and, admitted, It is a thing of beauty. a slightly squashed fair with a heavy metal core, and a lighter surface crust, wrapped in a thin sliver of sweet air to breathe, with vast oceans, fertile plains, magnificent mountains, fresh water rivers, streams, lakes and aquifers, orbiting a star which warms us, and gives us energy. But how did our home come in to existence, and what's it made of? 4.6 billion years ago, Earth was created from the remnants of dead stars, that collected in a giant, dirty gas cloud. The gas cloud became denser in its center, and formed an accretion disk. small particles started clumping together, and building larger and larger objects, until they form the objects we call "Planets" today. This process took 10 to 20 million years, and is still not very well understood. At about this time, when the solar system was young and chaotic, a giant object, about as big as Mars, collided with our home. The impact was violent, and if the object had been more massive, it might have destroyed Earth. Materials from Earth were smashed out into orbit, and formed the Moon, which is the biggest satellite in relation to its planet in the solar system. At this time, Earth was a hot hell, constantly being hit by asteroids, with seas of lava, and a toxic atmosphere. But something was about to change drastically. Earth cooled down. Water from the inside of the Earth wandered to the surface and rained down on Earth, only to vaporize again and become clouds. Millions of asteroids brought more and more water to our planet. All the water on Earth has about this volume compared to Earth. Today, the surface of Earth is 71% water, and 29% land. 97.5% is saline water, while only 2.5% is fresh water. The Fresh water is 69% ice and snow, 30% are ground waters, and only about 1% make up the remaining ground waters. But even this small part is mostly frozen. Only a tiny part of our water is actually lakes and rivers. and an even tinier part is bound in living things. So, gradually the Earth cooled down, and the surface formed a thin crust. But inside the earth, hot rock continue to swirl about, moving the crust from below and breaking it apart. This process is called "Plate Tectonics", and is happening right now. We'll make a whole video about it in the future. For now, let's just say that the crust of Earth consisted of separate giant plates that move around. As they meet, they crumble, and create mighty mountains. OR: violently plunge back down, deeper into Earth, creating deep trenches. That's the way the highest place on Earth was formed: Mt.Everest, and the deepest: the Mariana Trench. From our perspective, Earth's mountains and trenches are mighty indeed, but when you look at the Earth in cross-section, you can see how tiny they actually are. The part we stand on is the crust, which is about 50 kilometers thick, though it can vary between 5 and 70 kilometers By the way, the deepest hole ever drilled by man is 12.262 kilometers deep. After the crust, comes the mantle. It's a silicate rocky shell, and about 2,900 kilometers thick. The mantle consists of the upper mantle, and the lower mantle. The upper mantle has different regions, too. It's upper part, which is viscous and carries the crust, is called the "Lithosphere." After that, there comes the "Asthenosphere," which consists of less mobile, mostly solid material. The lower mantle reaches deep down to the outer core of Earth. Earth's outer core is a liquid layer of iron and nickel, about 2,266 kilometers thick. Temperatures vary from 4,000℃(7,232℉) to 5,700℃(10,292℉). And in the center, is the inner core. It's mostly solid, a ball made of an iron-nickel alloy. with a radius of about 1,200 kilometers. 70% of the size of the moon, and about the temperature of the surface of the Sun. It is slowly growing at an estimated rate of about 1mm/year. Now, for some respective, this small layer of crystallized melt products of former molten mantle, is where we live. Then, there's Earth's magnetic field. It's an invisible phenomenon that diverts high energy particles coming from the Sun and other sources, allowing for a stable environment with comparatively little radiation impact on Earth. But why is it there? Actually, we don't really know a terrible lot about that. We know, it has something to do with the core of Earth. Inside this metal sphere, large electrical currents flow in complicated patterns. They cause a magnetic field, that sort of stabilizes itself according to the laws of electrodynamics. This entire system is called the "Dynamo." But, don't let us fool you into thinking we have it all figured out. Speaking of breathtaking information, what about the airy stuff that surrounds us? By volume, dry air consists mostly of Nitrogen, Oxygen, Argon, Carbon, a variable mount of water vapor, and small amounts of other gases. Humans are very dependent on the lowest layer of the atmosphere: the Troposphere - Where the weather is. It's 12 kilometers thick on average. Above that is the Stratosphere, which is where the ozone layer protects us from the sun's most aggressive type of light. Above that is the Mesosphere - the coolest place on Earth, with an average temperature around -85℃(-121℉). At about 80 kilometers up, the Thermosphere starts. The transition to space is a fluent one, without clear borders. but humans decided that space starts here. At about 100 kilometers, Earth stops, and space begins, though the atmosphere extends a bit further. In this region, we find the Ionosphere, the aurora borealis, and the ISS, and the outermost layer is the Exosphere, stretching up to 10,000 kilometers. It merges fluently with outer space, where there's no atmosphere at all. The atoms and molecules in this area are so far apart, that they can travel hundreds of kilometers without colliding with each other. OK. Humans, in their present form, have only been around for 200,000 years. - that's 0.004% of Earth's history. Not long, really. And, here we are now, living in a thin, moist layer on a small, wet rock. We call this rock: Earth. It is the product of the universe's deepest workings, the result of a constant process of creation and destruction, happening all of the universe, all the time, helped by chance, the laws of the universe and random events, we are really lucky.
By NguyenHoangNamabout a year ago in Earth
The Earth - Beautiful Planet ( I )
Planet Earth is the only place we know of that supports life in the universe. It is about one-third as old as the universe itself and is truly beautiful, resembling a slightly flattened sphere with a heavy metal core and a lighter outer layer. It is surrounded by a thin atmosphere that provides air to breathe, and it features vast oceans, rich plains, towering mountains, and freshwater sources, all while orbiting a star that gives us warmth and energy. But how did our planet come to be, and what is it composed of? Approximately 4.6 billion years ago, Earth formed from the remnants of dead stars, which gathered in a massive gas cloud. This cloud became denser at its center, forming an accretion disk where small particles began to stick together to create larger objects, ultimately leading to the formation of planets. This process lasted between 10 to 20 million years and remains poorly understood. During this early period, a large object roughly the size of Mars collided with Earth. The impact was intense, and had the object been larger, it could have destroyed our planet. Material from Earth was thrown into orbit, resulting in the formation of the Moon, which is the largest satellite in relation to its planet in the solar system. At this point, Earth was a harsh environment, bombarded by asteroids, filled with lava, and having a toxic atmosphere. However, significant changes were on the horizon. Earth began to cool. Water from within the planet rose to the surface and rained down, only to evaporate and form clouds again. Countless asteroids also delivered additional water to Earth. Today, the Earth's surface consists of 71% water and 29% land, with 97.5% being salty and only 2.5% fresh. Of that fresh water, 69% is trapped in ice and snow, 30% is found underground, and only about 1% consists of lakes and rivers, with even less within living organisms. Over time, as Earth cooled, a thin crust formed. However, beneath the surface, hot rock continues to move and shift, breaking apart the crust. This ongoing process, known as plate tectonics, causes large tectonic plates to drift and collide, creating towering mountains and deep trenches. For instance, Mount Everest is formed by plate collision, while the Mariana Trench results from one plate sinking beneath another. Although these features seem significant from our viewpoint, they are relatively small compared to the entire structure of the Earth. The crust, where we live, is approximately 50 kilometers thick but can range between 5 and 70 kilometers. The deepest human-made hole is 12.262 kilometers deep. Below the crust lies the mantle, a rocky layer that stretches about 2,900 kilometers. The mantle is divided into the upper and lower sections, with the upper part being viscous and supportive of the crust, known as the lithosphere. Following this is the asthenosphere, made of mostly solid material that is less mobile. The lower mantle extends down to the outer core. This outer core is a liquid layer of iron and nickel, around 2,266 kilometers thick, with temperatures ranging from 4,000℃ to 5,700℃. At the center is the inner core, a mostly solid ball made of an iron-nickel alloy with a radius of about 1,200 kilometers, roughly 70% the size of the Moon and as hot as the Sun's surface. It grows slowly at an estimated rate of about 1 millimeter per year.
By NguyenHoangNamabout a year ago in Earth
