This massive Navy rig is typically 1000 ft long by 300 ft wide, weighing in at 100,000 tons! How in the world does it stay afloat? Good question, lets learn. First things first. The process used to keep an object afloat is displacement. The hull, or bottom of this large ship is designed to displace a volume of water that weighs more than the entire ship itself. How? Even though the carrier is made with heavy things, it's like a enormous iron, steel, and cement balloon. There is enough air inside
What do you get when you cross a polar bear and a seal?
A polar bear. (Cause it ate the seal)
Just kidding. However, I do want to talk about these bears' fur. Did you know that Polar bears have clear fur, but black skin? But somehow their fur looks white. Here we ago again.
A polar bear's coat consists of two layers of hair. A 5-15 cm long outer layer of guard hairs that are transparent, and a thick undercoat of shorter hair. Thanks to optics, these hairs appear white. Lumin
Like, foam foam? Or.. Styrofoam? No and no. Quantum foam. It's safe to say empty space is- empty. Right? Wrong. The universe can't tolerate that which is why particles are constantly popping into and out of existence all over the place. They’re called virtual particles, but they are proven to be very real. The catch is that they exist for only a fraction of a second, which is long enough to break some fundamental laws of physics but quick enough that this doesn’t actually matter. For instance, s
I'm not sure if you will get this meme but it's sonic the hedgehog, notorious for being fast, clearly enthralled by this knowledge. I found it pretty amusing.
Did you know that if you run really fast, you gain weight? Don't freak out, it's not permanent nor a noticeable amount. But say you ran as fast as the speed of light, the speed limit of the universe, and someone gave you a push. You wouldn't be able to go any faster, but you gain extra energy, and it's got to go somewhere. Where else
Yes the video is fake! However, the magic act of pulling the tablecloth out from under the settings was very real and a 'fun' at-home experiment! It's a trick of inertia and friction. Heavier plates are easier to perform with because they have more inertia (tendency to stay put). Also, a slippery cloth with no hems or edges is best to use because it reduces the force of friction on the table settings. Pull down, not out. This lets it come off all at once along the edge. Ta-da! Just like that, yo
This thing above may seem like a rad caster-board on the outside, but moving it involves crazy amounts of physics. The main component is its caster wheels.
Notice how they are on an angle compared to normal wheels. There is a reason for this.
The angle causes friction-through newtons 3rd law (every force has an equal and opposite force)- to act forward on the ripstik. However, in order to propel the board, a torque motion must cause the rear end of the board to rotate in the opposite
Batman should be dead. Rate 5 stars and I'll tell you why.
Okay cool thanks. Just kidding. It's because of his cape!
Do you really think batman would be able to survive a leap off of a skyscraper? Let's find out. A group of students from the University of Leicester did an actual experiment using mathematical simulations. They give a wingspan estimate of 15 feet. An average skyscraper is 492 feet high. W
As an avid fan of this show, it's really interesting to think about the physics that the creators had to make in order for this fictional realm to seem realistic. In fact, perhaps one of the most well known scientists, Neil deGrasse Tyson, has commented on both the good and the bad physics of the tv show.
First of course, are the dragons' flight capabilities.
“The dragon wingspans are sensibly large, as their body weight would require for flight,” he wrote. Also, note the fact that th
Two paper plates. One pencil. Six pennies. Tape. Task: make a top. No further instructions nor help was given. We were left with our minds and hands to create this device. At the end of the activity we were given two questions to answer in a blog.
1.How did today's opening activity relate to the engineering design process?
The engineering design process involves designing, building, testing, and reflecting. This relates to what we did in class because first we brainstormed solutions to
This class has shown me multiple times that I'm not doing enough preparation or work to succeed. It's no ordinary class where if you just put minimal effort in you will be crushed. I've learned that the hard way. I've never been more thankful for grade buffers like web assign or these blog posts, and even then I'm still procrastinating. However, one must fail in order to succeed. I strongly believe that applies to me right now. I didn't put the effort in first semester and was surprised that the
I like cookies and chicken. Two Cs. Just like AP Physics C. I also enjoy playing guitar in my free time and long walks on the beach. I am also an avid fan of the series Game of Thrones. As a varsity setter on the volleyball team, I have to take in each unique play and react based on the situations on the court. This relates to physics in which every problem is a new situation and I like a challenge. I hope to get a real sense of what careers in this field I may be interested in. I'm most excited
The popular mystery/horror TV show features a regular group of kids with a big discovery: parallel universes. More specifically it features the String Theory. This states that there are extra dimensions curled up into little balls. The teacher in the show does a good analogy to understand it: Picture our dimension as a tightrope, and we are an acrobat on this rope. The acrobat walking along the tightrope is huge compared to the thickness of the skinny rope! So, we see the rope as a one-dimension
I've always wanted to use a boomerang and see it somehow curve and come right back to me. As of right now, all I can do is explain the physics behind it to whoever is reading.
Main components involve aerodynamic lift and gyroscopic precession. In this case I will be talking about the traditional-shaped boomerang:
Anyways. When thrown from one end, the top end instantly has a higher airspeed. The boomerang itself is crafted with whats called an airfoil. The airfoil is a curved sh
Here's an example of the Cherenkov Radiation.
I read an article the other day that I thought was the coolest thing. It was about the speed of light and how it doesn't always travel very fast. In a vacuum, the speed of light is 300,000 km a second; however, light doesn't always travel in a vacuum. In water, for instance, light travels three quarters of that speed.
The article goes on to mention what I thought was super interesting. In nuclear reactors, particles can be forced up to sp
Super fun yet super tiring: jumping rope! Not to mention pretty difficult to get down. It actually takes quite a bit of physics you might not have thought of in order to time that jump perfectly and keep going.
First and foremost, jumping. Gravity forces you to have to jump up and over the rope as it swings under, otherwise the rope would whip your legs, probably leaving some red marks. It pulls the jumper down in between jumps so the cycle can continue.
So what about the rope? How co
Here's a little do-it-yourself physics experiment for anyone who cares: Ask your parents for a crystal wine glass. Be careful not to break it. Set it on a table and hold it firmly by its base. Now, get your finger wet by dipping it in water and slowly drag it across the top of the wine glass in a circular motion. If you have found the right frequency, you should hear a decently loud ringing sound.
Why does this happen? Thanks to the delightful physics of resonance, we can understand this ex
The game of momentum. The heavier the ball, the greater the momentum of that ball. The faster you throw it down the lane, the more momentum it carries. The lane of the bowling alley is designed to be as friction-less as possible, making the ball 'slip' although professionals can really put spin on the ball after years of practice.
Isn't it the worst when you hit the right spot on the pins and you're 99% sure you're gonna get a strike, the pins go flying, you're all excited, and then... the
The guy shoots webs everywhere and yet is one of the most popular superheroes worldwide. That web must be pretty strong in order to hold him up, theoretically speaking, I wonder what kind of physics go into it?
No. Peter Parker doesn't shoot webs out of holes in his wrists. He made devices that shoot them. But how strong are they actually? We can solve this using the momentum principle and a scene where his webs catch a car and slow it down to a stop. Let's say the car weighs 2000kg, and h
Anyone who has ever held a basketball has tossed it up, spun it, and let it bounce on the ground. Don't deny it. You'd watch it bounce back up to you just like you should have. But did you notice how it was spinning? Perhaps you spun it towards yourself, and without noticing after it bounced, I can guarantee it came back up spinning away from you. What sorcery is this? I know you are dying to know, so I'll tell ya.
Optical Illusions are fun! (which way is it spinning?)
Have you ever rubbed an object, say a balloon, in your hair and then held it next to a running faucet to find that the water actually bends towards the balloon? That fun yet simple experiment describes the fundamentals of electric charge!
Electrons have a negative charge. When you rub the balloon on your hair, those electrons collect onto the balloon, thus causing the balloon to hold a negative charge. Negatives attract towards neutral and positive things, so when the negatively charg
This classic viral video sparked a nationwide disturbance of young kids annoyingly flipping water bottles to no end. At the same time, we've all tried it. But those kids are still annoying.
Anyways, ever wonder how the water bottle is actually able to land perfectly on its bottom after being spun? Me neither! Until the other day when I was brainstorming ideas for blog posts. So I'll tell ya.
First of all, you need the ideal amount of water inside your bottle. The most preferred type i
A) “Beliefs That Make You Stupid”:
-Learning is fast
-Knowledge is composed of isolated facts
-Being good at a subject is a born talent
-I’m really good at multi-tasking
The belief that “learning is fast” relates to me because procrastination is clearly a big struggle with me, which shortens the time I give myself to learn something new immensely.
C) Metacognition is a student’s awareness of their level of understanding of a topic.
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