April 2025 S M T W T F S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Archives
- December 2024
- November 2024
- October 2024
- September 2024
- August 2024
- April 2024
- March 2024
- February 2024
- January 2024
- May 2023
- April 2023
- March 2023
- February 2023
- January 2023
- May 2022
- April 2022
- March 2022
- February 2022
- January 2022
- May 2021
- April 2021
- March 2021
- February 2021
- January 2021
- April 2020
- March 2020
- February 2020
- January 2020
- May 2019
- April 2019
- March 2019
- February 2019
- January 2019
- May 2018
- April 2018
- March 2018
- February 2018
- January 2018
- July 2017
- May 2017
- April 2017
- March 2017
- February 2017
- January 2017
- May 2016
- April 2016
- March 2016
- February 2016
- January 2016
- April 2015
- March 2015
- February 2015
- January 2015
- April 2014
- March 2014
- February 2014
- January 2014
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- April 2012
- March 2012
- February 2012
Currently Used Categories
Tag Cloud
- astro201
- astro2110
- astrobiology
- astronomy
- blog1
- blog2
- blog3
- blog4
- blog5
- blog6
- blog7
- blog8
- blog9
- blog10
- brahe
- Class
- Comets
- Copernicus
- earth
- Europa
- extremophiles
- galilei
- galileo
- gravity
- history
- HW2
- HW6
- jupiter
- Kepler
- life
- Mars
- me
- Moon
- NASA
- Newton
- planets
- pluto
- saturn
- Solar System
- space
- technology
- telescopes
- tides
- Time
- Uncategorized
Tag Archives: gravity
The ‘Grand Tack’ Hypothesis
The Grand Tack hypothesis theorizes that Jupiter formed much farther out from the sun than it currently is, migrated inwards quite a bit due to interactions with the early solar nebula, and then back out a little ways (imitating a tack, the maneuver where a sailboat changes direction). Of all of the fascinating facts and […] Continue reading
The Moon and The Tides
Did you know that tides are caused by the Moon’s gravitational pull? (Photo from The Business Insider) Usually about every 12 hours coastal places around the world experience high and low tides in a constant cycle. This is due to the subtle pull of the Moon’s gravitational forces on the Earth’s water supply. Along the […] Continue reading
Gravity on Earth versus other planets in our solar system
Exploring how gravity on different planets in our solar system is different. Gravity definition: Gravity is the force that attracts items to a planet or other body’s core. Gravity keeps the planets in orbit around the sun. Since all the planets weigh differently, and have different radius this causes the gravitational pull of each planet […] Continue reading
Gravity & General Relativity
You throw something up in the air and it falls down. Why? Gravity, obviously, everyone knows that. But what really is gravity? By most common knowledge, gravity is one of the four fundamental forces, and has a lot more to it than just making things fall. Gravity actually works as an attraction between two masses, […] Continue reading
From collapse to solar system
Once upon a time, there was a huge interstellar cloud of cold, low-density gas called the solar nebula. This solar nebula came about from billions of years of galactic recycling, and consists of about 98% hydrogen and helium and 2% other random elements. The solar nebula collapsed under its own gravity, and BOOM! the Sun […] Continue reading
Blog 4: Explaining Relativistic time dilation
Time seems to be one of the only immutable aspects of the universe, besides death and taxes. Many people believe that the passage of time is altogether unstoppable and unyielding. And for most intensive purposes, they are right. Indeed, time is our most precious resource and one that many of believe we have an extremely […] Continue reading
Posted in Class, Light, Physics, Universe
Tagged astro2110, blog4, gravity, relativity, spacetime, speedoflight
Comments Off on Blog 4: Explaining Relativistic time dilation
Gravitational Mysteries
by me The idea of gravity, the fundamental force that controls how objects move in the universe, is both intriguing and mysterious. Gravity is a force that pulls objects toward each other; it controls everything from an apple falling from a tree to a planet’s orbit around a star. It’s a force that operates over […] Continue reading
What Goes Up…
We all hopefully know what gravity is by now and the age-old story of Newton and the apple tree, but what less of us may know is what causes shifts in gravity, how it changes even on Earth, and how things choose to reciprocate it. While it is true that size is the defining factor […] Continue reading
Understanding Gravity
There are many different ways to visualize how gravity functions. However, one of the best way I have found to visualize gravity is with strings and using the center of mass. Gravity is the weakest force of the four fundamental forces, however, it works over an infinite amount of distance. I put this in perspective […] Continue reading
Fun Fact About Gravity
One thing that has always fascinated me is how gravity and time are interlocked. Specifically, people at higher altitudes experience time relatively faster than people at sea level. This is due to a concept called gravitational time dilation. Time dilation comes from Newton’s theory of relativity. Basically, the more gravity you feel, the slower you […] Continue reading