Answers to Readers' Questions on The Earth - Astronomy. Also refer to physics, planet, moon, orbit, Sun, Moon, axis, tilt, revolving, seasons, daylight, seasons, gravity, magnetism, force fields, characteristics, composition, escape velocity,, Ron Kurtus, School for Champions. Copyright © Restrictions
Answers to Readers' Questions on The Earth
The following 48 questions have been answered. They are listed according to date.
List of first 10 items
- Not on other planets
- What does the Earth do on its axis?
- I believe the Sun travels around the Earth
- Does the Earth have a uniform velocity?
- Is the Earth moving closer to the Sun?
- Why is San Diego warmer than New York?
- Thanks for the really cool website
- How does the Earth stay in space?
- Using hot materials from Earth's mantle
- Why does the Earth spin on its axis?
Not on other planets
Question
November 24, 2008
what are the characteristics of earth which can't be found on other planets
raul - Philippines
16848
Answer
Life, humans, moderate temperature range, oxygen atmosphere
What does the Earth do on its axis?
Question
November 9, 2008
can u tell me the answer to this question please? my question is =As Earthrevolves around the sun,it also [blank] on its axis. i cant figure out the blank , thank you
payton - USA
16755
Answer
The Earth tilts on its axis, resulting in the seasons as it goes around the Sun.
I believe the Sun travels around the Earth
Question
November 25, 2007
the earth is constant.its fixed.the sun is the one which revolutes around it.
if earth is moving,then how is the behavior of light.the speed of light is 3 multiplied by 10^5 km/s.which means the light will fit every single point on the earth,which is not true.when there is a morning in china,its night at america.if the earth rotates of speed 30km/s,then the light will reach america since its speed is much higher than that of the earth.
the other seasons do not come due to the motion of the earth.
in fact the earth is centered.there exist a large circle in space in which the sun lies on and moves around the earth.there exist another huge imaginary circles in space in which the moon lies on.
now,note clearly about this question.what is the smallest creature we have ever discovered?
its the atom.the atom consist of nucleus and electron cloud.the nucleas is centered,and the electrons revolute aroud the nuclues on the electron clouds(the circles).but the helium atom has 2 electrons and hence two electron cloud.therefore our huge huge universe is a module of the helium atom which is the smallest creature we have ever discoved!
why do you thing we are subjected to the universal gravitation?
the protons affects the electrons with a force in the atom.
therefore,the earth has a charge,affecting both the sun and the moon with a costant force 10N/kg.which can be identified:f=k(q1)(q2)/d^2
but we need to figure out the distance to know the real charge.
Abdul Rahman - Lebanon
14844
Answer
The ideas that you have were popular in science a long time ago. Since then, new discoveries and measurements have brought about new concepts. Many of our lessons explain those concepts, which are now accepted as true.
The Sun only appears to move around the Earth, because of our perspective. It was proven over 300 years ago from measurements of the movement of the planets, that the Earth and the planets revolve around the Sun. This has also been shown by pictures taken from space vehicles.
Einstein's Theory of Relativity states that the speed of light is constant no matter how fast an object travels.
100 years ago, the atom was though of as the smallest item. Since then, there have been numerous particles discovered that are much smaller than the atom.
Does the Earth have a uniform velocity?
Question
October 16, 2007
Can we say that earth is moving with uniform velocity as it always have the same average velocity
usha - India
14551
Answer
Since the Earth is traveling in a slight ellipse around the Sun, it actually speeds up when it is closest to the Sun. But most do not consider that and say the Earth has a uniform velocity. Average velocity is more correct.
Is the Earth moving closer to the Sun?
Question
August 5, 2007
Is it true that the Earth is moving closer to the sun each year? and if it is true does that mean in so many years we will all die of heat waves.
- USA
14162
Answer
Yes, the Earth is slowing down and thus is getting closer to the Sun. But it is less than a mile a year. Since the Earth is 92,000,000 miles from the Sun, people on Earth will not be affected by it for about a million years from now.
Why is San Diego warmer than New York?
Question
February 8, 2007
Since the sun rotates on it's axis, and revolves around the sun, how is it that certain regions of the earth are always hot or cold and others have changing weather/ seasons of greater magnitude. Example, San Diego Ca. always 72 and pleasant, New york goes from Hot summer to cold winter. What controls that?
Halle - USA
13096
Answer
Since the earth is round, the sun shines more directly in areas closer to the equator than in areas further north or further south. San Diego is closer to the equator than is New York City. That means the sun shines on San Diego more directly than in New York, where the sun shines and on a glancing angle.
When the sun shines correct more heat is absorbed, but when it shines on an angle much of the sunlight is reflected back into space.
The weather in San Diego is warmer than it should be just because of the sun. That is because there are warm ocean currents that bring warmer weather to San Diego.
Thanks for the really cool website
Question
December 4, 2006
hi i liked yuor website it really help me with my homework thank you again really cool website it gave me lots of information i did the quiz and i got all the questions right thank you
- USA
12551
Answer
Thanks for your feedback. I'm glad to hear that the material helped you with your homework. I hope you get high grades in your classes.
How does the Earth stay in space?
Question
October 27, 2006
WHAT CARRIES THE EARTH? OR IN GENERAL, THE OTHER PLANENTS TOO?.
Sire,i am a bit skeptical about what really carries the Earth or in general the rest of the planets.
I Believe suspended masses in a free fall relativity to each other can't carry
each other unless one rests on another.This is beyond my believe of "Gravity"
So, help me please.
Charles - Australia
12244
Answer
The concept of space is difficult to understand. A planet or star floats in space. There is no up or down. Motion is only determined as relative to another body in space. Gravity is a force that attracts objects together. Their motion can overcome the force of gravity.
Using hot materials from Earth's mantle
Question
September 19, 2006
THE MANTLE OF THE EARTH IS MADE UP OF DENSE AND HOT MINERALS.HOW COULD THESE CHARACERISTICS BE USEFUL TO HUMANS? WHAT ARE THE OBSTACLES TO MINING THESE RESOURCES?
GHARAM - USA
11955
Answer
In some areas, the hot materials are used to heat homes and to generate electricity. It is a form of renewable energy, except that it is very deep and difficult to reach except in certain areas in the World.
Why does the Earth spin on its axis?
Question
July 24, 2006
why earth moves around its axis ? what is the reason behind it? please explain? i would want to know about it.
sucharu - India
11538
Answer
All the planets including the Earth spin while going around the Sun. Also, the Sun spins on its axis. Any globe that spins is spinning on its axis, which is the point that it spins around.
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Answers to Readers' Questions on The Earth