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Category Archives: physics
Hello and welcome to my blog! I hope to fill this website with interesting topics about physics and astronomy. My name is Khalil Greene and I am a student at Vanderbilt University. My major is physics and I plan to minor in astronomy so that I can go to graduate school and become an astrophysicist.Continue reading “I love physics” Continue reading → Continue reading
The string theory is a very interesting idea that propose another totally different way of thinking what made up our universe. Although this theory is very arguable because it can never be tested in our labs so that a lot of physicist do not like this theory, but it indeed gives a very unique prospective … Continue reading String theory – the other way of interpreting our universe → Continue reading → Continue reading
Because of this class my view of the solar system has changed. From a young age I knew the order of the planets and even some basic facts about each of them. What I did not know, however, was how much more there was to know not only about our solar system, but about the … Continue reading Blog 7: Culmination of a Semester in Astronomy → Continue reading → Continue reading
One really cool thing I learned about this semester is a thing called “St. Elmo’s Fire.” (I’m pretty sure the textbook mentions it somewhere, and after stumbling across it I was instantly curious.) So… what is it? For starters, it definitely does not involve Emilio Estevez or a fuzzy red puppet (or is it muppet?)…
In many science fiction movies, spaceships race through the galaxy at extremely high speeds, seemingly ignoring many of nature’s laws that govern our universe. With what we know about the universe right now, it is impossible for any object to travel faster than the speed of light. Any man made object has not reached speeds … Continue reading Interstellar Travel Continue reading → Continue reading
Astrobiology is becoming an increasingly discussed topic as new exoplanets are being found and we discover more about the worlds of our own solar system. Of course, for there to be life on other planets, it first needs to come into existence on its own through abiogenesis, or the creation of life through non-biological sources. … Continue reading Hydrothermal Vents: The Origin of Life? → Continue reading → Continue reading
There are few things in the entire Universe that are as terrifyingly awesome as a black hole. To have a region of space exist that contains gravitational forces so strong that literally nothing can escape it (whether it’s a particle, light, or any electromagnetic radiation for that matter) seems like a concept straight out of … Continue reading What’s in a Black Hole? → Continue reading → Continue reading
As we’ve seen over the past few generations, our ability to harness technology to accomplish things never before seen or done has only increased exponentially. As a race, we’ve been able to photograph a black hole, we’ve been able to send probes to places in space that were thought to be unreachable, and we’ve just … Continue reading Are We Alone? → Continue reading → Continue reading
One of the world’s most fascinating and natural wonders are the Northern Lights. These magical lights come in a variety of dancing colors. This seemingly random light show occurs as a result of interactions of Earth’s magnetic field and atmosphere with solar winds. Solar winds released by the Sun’s sunspot regions travel through space until … Continue reading The Northern Lights → Continue reading → Continue reading
Traveling to other solar systems seem pretty easy in the movies, but in real life, it could get quite complicated. First of all, the closest star system to us is Alpha Centauri, which is 4.37 light-years away, which is very far from us even if we can travel at the speed of light. But even … Continue reading How Hard is Interstellar Travel? → Continue reading → Continue reading