SciShow
Pluto Might Have a Liquid Water Ocean! SciShow News
Pluto might seem like the least likely place to find liquid water, but thanks to New Horizons, we have new information about oceans on the dwarf planet and more from the outer reaches of the solar system!
Bozeman Science
Elements and Molecules
In this video Paul Andersen explains how elements and molecules are made of atoms. In a pure sample of a pure substance the average mass remains the same. If more than one atom is found in a molecule the ration of average masses remains...
SciShow
We Found One of the Oldest Galaxies Ever!
Astronomers found a galaxy older than almost any we’ve ever seen before, and we have a new, faster method to use in our search for habitable planets.
Crash Course
Eukaryopolis - The City of Animal Cells: Crash Course Biology
Hank tells us about the city of Eukaryopolis - the animal cell that is responsible for all the cool things that happen in our bodies.
Curated Video
Why Is the Sky Blue? A Scientific Explanation
New ReviewWhy is the sky blue? Well, it is not quite actually blue. Here's the story: The sun does not emit yellow light like you’ve been taught. It emits White light…and white light is made up of all the different colors of the rainbow. I can...
Curated Video
Do Living Things Have Free Will or Are They Biologically Programmed?
How low in complexity can you go and still have free will. Does a bacteria have free will? Do single cells have it? What do we know about agency in living systems? I collaborated with physicist and author Philip Ball, a former editor at...
Professor Dave Explains
Metabolomicist Vasudevan Karanghat (Get to Know a Scientist!)
What is metabolomics? Why, it's the study of metabolites of course! In the case of today's researcher, Vasudevan Karanghat, this means using instrumentation and analytical techniques to figure out the concentrations of various compounds...
Curated Video
DIY SCI - EGG IN THE BOTTLE EXPERIMENT
DIY SCI host Steve Spangler demonstrates how the egg in the bottle experiment works.
Curated Video
Possible 'Hints' Of Life Found On Planet 124 Light-Years Away In James Webb Space Telescope Data
Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity outside the solar system," according to a University of Cambridge study. Credit: University of Cambridge
Curated Video
Isoelectric Focusing Gels
Isoelectric focusing (IEF) is a high-resolution protein separation technique that separates proteins based on their isoelectric points (pI) using a pH gradient in an electric field. Proteins migrate to the region where their net charge...
Curated Video
Aquaporins: What Are They?
Aquaporins are specialized membrane proteins that form water-selective channels, allowing rapid water movement across cell membranes while blocking ions and solutes. Structurally, they consist of six transmembrane α-helices and loop...
Curated Video
MHC I Vs MHC II: Easy Trick to Remember
The Major Histocompatibility Complex (MHC) is a tightly linked gene cluster encoding cell surface molecules essential for antigen presentation and graft rejection, known as histocompatibility antigens. In humans (HLA on chromosome 6),...
Curated Video
Glycolysis Made Easy: Mnemonic Device
Glycolysis is the cytoplasmic process of breaking down one glucose molecule into two pyruvate molecules, producing a net gain of 2 ATP, 2 NADH, and 2 water molecules. It functions with or without oxygen—serving as the first step in...
Curated Video
MHC Class I and Class II Structure: Function and Difference
The Major Histocompatibility Complex (MHC) is a tightly linked gene cluster encoding cell surface molecules essential for antigen presentation and tissue graft rejection, known as histocompatibility antigens. In humans (HLA complex on...
Curated Video
SDS PAGE: Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis
SDS–PAGE is a widely used technique for qualitative analysis of protein mixtures, particularly during protein purification. Proteins are denatured using SDS and β-mercaptoethanol, which linearize the molecules and impart a uniform...
Curated Video
Relation between Kp and Kc
The relationship between 𝐾𝑝 (equilibrium constant in terms of partial pressure) and 𝐾𝑐 (equilibrium constant in terms of concentration) is expressed as 𝐾𝑝=𝐾𝑐(𝑅𝑇)Δ𝑛 , where 𝑅 is the gas constant, T is temperature in kelvin, and Δ𝑛 is the...
Curated Video
Equilibrium in Physical Process
Explains how equilibrium is established in physical changes like phase transitions
Curated Video
Passive transport: diffusion and osmosis
Passive transport is a naturally occurring phenomenon that allows us to keep things balanced in our cells. Simple diffusion, facilitated diffusion and osmosis are known types of passive transport.
Curated Video
Chemistry - 1-Step Mole Conversions
The mole is an important concept to understand in chemistry and being able to convert the mole to different units like grams, molecules, ions, atoms or liters is equally important. In this video, we cover the different conversion factors...
Curated Video
Protein functions in the human body
Proteins are complex macromolecules that are considered 1 of the 4 macromolecules that make up life. Proteins have many functions beyond being structural components of cells.
Curated Video
Molecules, compounds and types of chemical bonds
What is the difference between a molecule and a compound? What are the main types of chemical bonds? In this video, we will be answering those questions and more.
Curated Video
Phospholipids: types, structure and function
What exactly are phospholipids, and how do they contribute to the structure and function of cell membranes? In this video, we will explore the world of phospholipids, including their chemical structure, properties, and functions in the...
Curated Video
Atoms and Molecules - what is the difference??
Atoms are the basic building blocks of all matter and they are very very small. They are made up of protons, neutrons and electrons and they are the smallest unit of matter that still retains the basic properties of an element. Molecules...
Curated Video
Chemistry - The Mole Explained - What is Avogadro's Number?!
Understanding the mole and how to use it is essential to your success in chemistry. The mole just represents the amount of a substance. 1 mole of anything is equal to 6.02 x 10^23 which is known as Avogadro's number. This number tells us...