How do you begin to model the climate?

Water in the Air reveals the varied phases of water that surround us, fall on us, travel in air, and serve as a crucial component of the water cycle. Emphasis is on the fact that water in air can be vapor or solid, visible or invisible,...

Selinunte is one of the most important archaeological sites of the Greek period in Italy. The city was famous throughout the ancient world for the richness of its farmland and its monumental temples. It enjoyed a prosperous existence...

A team of scientists made the first-ever sighting of an exotic particle by using the Large Hadron Collider at Europe’s CERN.

In this video, I calculate the energy and momentum for an electron in a quantized system (a porphyrin). ***Using the particle-on-a-ring model.

Water in the Air reveals the varied phases of water that surround us, fall on us, travel in air, and serve as a crucial component of the water cycle. Emphasis is on the fact that water in air can be vapor or solid, visible or invisible,...

Scientists at the CERN research center have said it is now almost certain they found the Higgs boson, or "God Particle," so named because it gives other subatomic particles their mass. Extensive analysis of findings from July last year...

Postulates of Quantum Mechanics: Expectation Values

Circular Motion Summary

In this video we see how the Schrodinger equation comes out very simply from the conservation of energy. First. Throughout these 2 videos, I kept talking about predicting the future, and that if you know the present state, you can...

With the assistance of an animation, this video shows how to calculate impulse using the change in momentum.

This video is a lecture on the particle model and density. It explains the three states that matter can be in - solid, liquid, and gas - and their particle structures. The video describes how these structures affect their properties,...

Determine the Hamiltonian for Multi-Electron Atoms #1 (Helium)

Heisenberg's Uncertainty Principle: Example #1

Here we've been given an equation describing the acceleration of a particle. Using only two formulas we can solve this problem: a = dv/dt and v = dx/dt. The problem is solved by pushing through the mathematics and plugging in boundary...

Here I derive expressions for the energy added per cycle due to both the harmonic excitation force and the damper. The work done by the spring per cycle = 0.



An alternative way to approach this is to find the average power...

This is a lecture video explaining the mathematical relationship between the pressure and volume of a gas when it is at a constant temperature and has a fixed mass. The video discusses how the pressure and volume of a gas are inversely...

A block is sliding down a circular path and colliding with a spring. What is the maximum compression of the spring?

The EPR paradox, that we met in a previous video, tells us 2 entangled particles can effect each other no matter now far away they are. But then why cant we use them to send instant messages across the universe? Einsteins relativity...

Researchers believe that the town was founded in the 7th or 6th century BC by the Osci or Oscans. It came under the domination of Rome in the 4th century BC, and was conquered and became a Roman colony in 80 BC after it joined an...

Signaling across synapses--the tiny gaps between neurons, over a thousand times thinner than a sheet of paper--requires multiple molecules to work together. To learn how neurons communicate, and ensure they pass across the synapses at...

QM Applications: Particle-in-a-Box (Derivation)

Work through this practice GCSE / K12 question on atomic number, atomic mass and electronic configuration. Read the question, and hit pause if you want to try answering it yourself. Then hit play again to watch how the teacher solves it.

This video is the second in a series about the thermal properties of water. It shows an experiment being carried out to obtain data for drawing a temperature time graph of melting ice. The experiment involves placing crushed ice in a...