Core, Mantle, And Crust Are Divisions Based On Composition. The Crust Makes Up Less Than 1 P
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Zakariya5051
What You Should Know About The Internal Structure Of The Earth
~2.4 mins read
The Composition and Structure of Earth
Core, mantle, and crust are divisions based on composition. The crust makes up less than 1 percent of Earth by mass, consisting of oceanic crust and continental crust is often more felsic rock. The mantle is hot and represents about 68 percent of Earth’s mass. Finally, the core is mostly iron metal. The core makes up about 31% of the Earth. Lithosphere and asthenosphere are divisions based on mechanical properties. The lithosphere is composed of both the crust and the portion of the upper mantle that behaves as a brittle, rigid solid. The asthenosphere is partially molten upper mantle material that behaves plastically and can flow. This animation by Earthquide shows the layers by composition and by mechanical properties.
Crust and Lithosphere
Earth’s outer surface is its crust; a cold, thin, brittle outer shell made of rock. The crust is very thin, relative to the radius of the planet. There are two very different types of crust, each with its own distinctive physical and chemical properties.Oceanic crust is composed of magma that erupts on the seafloor to create basalt lava flows or cools deeper down to create the intrusive igneous rock gabbro. Sediments, primarily muds and the shells of tiny sea creatures, coat the seafloor. Sediment is thickest near the shore where it comes off the continents in rivers and on wind currents.Continental crust is made up of many different types of igneous, metamorphic, and sedimentary rocks. The average composition is granite, which is much less dense than the mafic igneous rocks of the oceanic crust. Because it is thick and has relatively low density, continental crust rises higher on the mantle than oceanic crust, which sinks into the mantle to form basins. When filled with water, these basins form the planet’s oceans.The lithosphere is the outermost mechanical layer, which behaves as a brittle, rigid solid. The lithosphere is about 100 kilometers thick. The definition of the lithosphere is based on how earth materials behave, so it includes the crust and the uppermost mantle, which are both brittle. Since it is rigid and brittle, when stresses act on the lithosphere, it breaks. This is what we experience as an earthquake.
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Zakariya5051
Stop Using Candle To Read, Learn How To Construct Your Own Lantern Using Battery And Wire.
~7.5 mins read
HOW TO CONSTRUCT YOUR OWN NON RECHARGEABLE LANTERN, WITH YOUR NORMAL BATTERY AND WIRE.
Today, we will be sharing with our readers, how to construct their own, personal non rechargeable Lantern, with just your normal battery and wire. Also, the reason, we said that you should stop using candle, is because candle spoils your eye. So, go get your pen, pencil, and your other writing materials ready. Let us now continue.
Creating a light ( using bulb, battery, and wire ) is very quick, simple and easy. These are the materials you need.
1. Light Bulb
2. Battery.
3. Wire.
You should not use normal wire, in construction of this type of lantern, we use an insulated wire.
You should not use normal wire, in construction of this type of lantern, we use an insulated wire.
4. Electrical tape.
It is normally black in colour.
It is normally black in colour.
5. Wooden base.
something like a plywood. The work of the wooden base, is to help you in mounting the circuit, that is your connection. The wooden base is where all the connections, is being carried out. Your place your battery, wire and bulb on the wooden base. You must not always use a wooden base, so sometimes uses plastic, for their connection.
something like a plywood. The work of the wooden base, is to help you in mounting the circuit, that is your connection. The wooden base is where all the connections, is being carried out. Your place your battery, wire and bulb on the wooden base. You must not always use a wooden base, so sometimes uses plastic, for their connection.
6. Scissors.
The work of the scissors, is to help you in cutting the wires.
7. And lastly, another material you can use us switch, but it is not compulsory. The switch can be of any type.
Picture, showing the general materials use in the construction of lantern.
Steps On How To Construct Your Own Lantern, With Just Battery, Light Bulb, And Wire.
You can learn these basic facts about electricity, by wiring a bulb to a battery. The aim of wiring the circuit, is so that the current from the batteries, will now flow directly through the wire to the light bulb, thereby lighting it. Let us now go to the steps, on how to do the connection.
Step one :
Connect your wire to your battery. You know that wire has two end. So, connect one end to the battery, and tape it with an electrical tape.
Step two :
Join the other end of the wire to the light bulb. See the picture below, so as to understand what we mean.
Step three :
Once you are through, with connecting the wire, to both the battery and the bulb. You can now connect your light bulb. Once you are through with connecting your light bulb, you can now place it on a wooden base. But before you place it on a wooden base, you are to first of all test it before, placing it one a wooden base. You can test it by using the mouth of the battery, and touch it to the bottom of the light bulb, to know whether, it will flash light. See the picture below, to know what to do.
Once you place it, and it shows light, you can know place it, in a wooden base. You can introduce a switch, if you want. The work of the switch is to help you to off and on the light, at anytime of your choice. But, if you decide not to use switch, then you can only off the light, by removing the wire, either from the bulb, or from the battery. See the picture of a light bulb, connected with a switch below. ( The type of switch used here, is the one that when you close it, the light will switch on, but when you raise it up, the light will turn off )
See the picture when the switch is closed, and the light is on.
See the picture of when it switch is open, and the light is off. But you can use any type of switch of your choice. The main work of the switch is to on and off the light.
We use this type of light bulb, because it is the only type that we can find. Know that you can you any type of bulb, even a white bulb. Let me show you the picture of what we are trying explain.
Know also, that no matter the type of light bulb you use, the steps are still the same. If you are using the type of light bulb shown above, if you want to connect the wire to it, this is what you should do. Turn the back of the light bulb. But first, Connect your wire to the battery, you want to use. Then, use that wire to be touching the small metal, at the back of the bulb, you should keep on testing it, until the light bulb shows light. Then, you can mark that place, because it is will where you will be connecting your wire. Your can use tape, to join the wire to the small metal head, at the back of the bulb, your can use tape, or soldering iron, but we choose tape because, it is readily available to get. You can use a wooden material as it base, you can use anything. You can even use carton, if you want to design it.
And That is all for this teaching. In summary, remember that you can use any type of battery. You even use a tiger battery. See the picture of a tiger battery below.
Note that, the size of your battery, or should I say the voltage of your battery, determines the strength of your light bulb.
Thanks for Reading, and please don't forget to react, comment, if you have constructed a light bulb before tell us, also in the comment section and also share with others. If you enjoyed reading this, kindly click on red button above, so as to see more from us, we also write about sports, Society news, and other health issues, follow us @ Worldwideupdate, for more and for your updates, thanks and remain blessed.
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