See how there's actually constructive (rather than just destructive) interference at some points on the screen. Created by David SantoPietro.
Some examples of using the thin lens equation with multiple lenses. Created by David SantoPietro.
An introduction to mutagens and carcinogens.
Overview of non-coding RNA (ncRNA).
Using the ratio of neutrons to protons to figure out of a nucleus will be stable or radioactive. Created by Jay.
Introduction to pressure-volume diagrams.
Introduction to pressure-volume diagrams, part 2.
Explaining the photoelectric effect using wave-particle duality, the work function of a metal, and how to calculate the velocity of a photoelectron. Created by Jay.
In this video, David explains what a photon is and how to determine the energy of a photon. Created by David SantoPietro.
In this video, David (and surfer Dan) explain how to determine the momentum of a photon.
Overview of post-transcriptional regulation
In this video David gives an introductory explanation of what the quantum wavefunction is, how to use it, and where it comes from.
Overview of Regulation of transcription.
What makes two organisms members of different species? Learn about the forces behind reproductive isolation. By Ross Firestone.
Explanation of the second law of thermodynamics.
Conservative replication, dispersive replication, and semi-conservative replication.
What happens when there's only one hole? Created by David SantoPietro.
In this video David explains what specific gravity means. He also shows how to calculate the value for specific gravity and use it to determine the percent of an object that will be submerged while floating.
Thin film interference occurs when light waves reflecting off the top and bottom surfaces of a thin film interfere with one another. This type of interference is the reason that thin films, such as oil or soap bubbles, form colorful patterns. Created by David SantoPietro.
Let's work out a few details on how thin film interference works. Created by David SantoPietro.