Astronomy notes The Earth straight Coriolis effect like centrifugal force Motion in the car cleaning clothes in the washer Centrifugal force when you impose a circular motion on an object that wants to go Direction of motion of hurricanes and projectiles Actual path vs expected path Expansion and density Wind blows from high pressure to low pressure Things want to moves from the hot to the cold Hurricane Katrina winds go up ask Stratification layers of the earth s crust The earth was put in the oven and different parts of the cookie were different If you re lighter you go up that s called convection temperatures The reason why the object breaks is because something non uniform is happening Ridges cause tectonic plate activity Europe Africa and America were one piece millions of years ago When plates move together you can make mountains islands Greek has 50 of the earthquakes on the whole Eurasian plate There is nothing permanent The axis of the earth relative to the magnetic axis is always changing The geographic and magnetic north pole are different they are 11 degrees from Other planets have different angle Thousands of years ago the earths magnetic field was at a different angle than it is each other today You can look at frozen lava beds to see how long it takes the earth s magnetic field to change from north to south it takes 200000 years The earth was in a liquid state The core is twice as dense as the mantle The inner core is solid iron The outer core is liquid iron The heaviest element sunk to the core We send sound waves The more dense an ob We map out the interior of the earth by examining earth quake waves The depth of the crust varies because the land has more crust and the sea has less Indirect evidence is the observance of the magnetic field crust ask You can calculate the speed of the tectonic plates moving Pressure builds up along a fault When they come apart things come out In the mantle there is convective flow you need gravity and heat difference It s hotter on the interior of the earth it wants to go where gravity is weaker It gets cold and it goes back where it came from When one slides over the other mountains form When the rub against each other they cause friction This is how the temperature on the surface of the earth changes as you go up Kelvin 273 Celsius Centigrade Temperature drops until the get to the stratosphere Then at the stratopause temperature drops again Greenhouse effect Converting blue light to infrared light the windows are transparent in the visible Certain wavelengths don t go through the windows Car seats convert light into heat Light converts to motion of the electrons of the atoms Like if you punch a mattress the mattress wont punch you back it ll just move your spectrum fist is the light Jupiter is 100 or so Kelvin Clouds of carbon dioxide don t allow the heat to go out The ozone layer is very important in the south atlantic there is a big hole The surface of the earth is only 300 Kelvin On Saturn is 90 Kelvin They use liquid nitrogen to keep superconducting magnets cool Van Allen belts are produced by radiation of charged particles at the poles Aurora on the north pole are Particles coming from the sun have electric charge protons or electrons this is the solar wind The sun is mostly hydrogen If you take Hydrogen and the sun s heat conditions the hydrogen atoms come apart this is plasma All these things are thrown away from the sun also from solar activity like sun A charged particle in a magnetic field will go in a circle around the magnetic field spots and solar flares and in the direction of the current These charged particles will land near the north pole or south pole Charges accumulate at the north and south poles When you change the course of a charged particle radiation is produced Depending on how energetic the interaction is it could emit different levels of electromagnetic radiation The radiation produces the aurora borealis in the north and aurora australis in the south In TVs there was an electron gun The main gases on earth are nitrogen and oxygen The Moon It takes the moon 29 days for the moon to go around the earth There are twelve months in the year because there are twelve lunar periods in the year 12 is sacred because it is divisible by 1 2 3 4 6 12 A sidereal month is 27 32 days the moon going back into the same position A synodic month is 29 days it is the amount of time it takes the moon to come back relative to space and to me to the same phase The moon always maintains the face towards the earth synchronous rotation The moon s orbit is five degrees above the ecliptic the plane in which the sun and earth always are In order to have an eclipse the moon must be on a node exam when do you have eclipse and when do you not have one It goes through a bigger area on the atmosphere so the earth absorbs more light When we have a full moon the sun is directly behind us For a solar eclipse to happen t When can you invade the fire nation when the moon is on a node The moon at lunar eclipse is not invisible because it is red More red light come out of the earths atmosphere than blue light FULL MOON IS NOT LUNAR ECLIPSE Spring tides lots of movement of the water Neap tides weak The moon pulls the water towards it Uniform distribution of water on earth if there is no moon or satellites The moon has no atmosphore so we can see the traces of meteor strikes We can t see then on earth because there is atmosphere and weathering At new moon or full moon you will have spring tides
View Full Document
Unlocking...