PBS
What Happens Inside a Proton?
If we ever want to simulate a universe, we should probably learn to simulate even a single atomic nucleus. But it’s taken some of the most incredible ingenuity of the past half-century to figure out how that out. All so that today I can...
PBS
The Trebuchet Challenge | Space Time
Kinetic and potential energy are defined as combinations of more basic quantities: position, velocity and mass. These combinations are chosen so that their sum is conserved. It’s actually remarkable that there’s any such combination of...
SciShow
Why’d the Ocean Stop Getting Saltier?
If salty water is constantly spilling into the world’s oceans, does that mean they are getting saltier by the day?
PBS
Hawking Radiation
It's the most famous prediction of perhaps the most famous genius of our time ... Stephen Hawking's theory of Hawking Radiation.
SciShow
Why’d the Ocean Stop Getting Saltier?
If salty water is constantly spilling into the world’s oceans, does that mean they are getting saltier by the day?
TED Talks
Edward Burtynsky: Photographing the landscape of oil
In stunning large-format photographs, Edward Burtynsky follows the path of oil through modern society, from wellhead to pipeline to car engine -- and then beyond to the projected peak-oil endgame.
Amoeba Sisters
Microscopes and How to Use a Light Microscope
Explore how to use a light microscope with the Amoeba Sisters! Includes microscope parts, how to use, and some helpful tips! Additionally, this video introduces a few types of light microscopes as well as electron microscopes. Expand...
SciShow
The Weird Truth About Arabic Numerals
Hank unravels the fascinating yarn of how the world came to use so-called Arabic numerals -- from the scholarship of ancient Hindu mathematicians, to Muslim scientist Al-Khwarizmi, to the merchants of medieval Italy.
TED Talks
TED: The magic of Fibonacci numbers | Arthur Benjamin
Math is logical, functional and just ... awesome. Mathemagician Arthur Benjamin explores hidden properties of that weird and wonderful set of numbers, the Fibonacci series. (And reminds you that mathematics can be inspiring, too!)
MinutePhysics
The Man Who Corrected Einstein
This video is about how Russian physicist Aleksandr Fridman corrected Albert Einstein about the expansion of the universe. Einstein thought that general relativity implied that space had to be static and unchanging, but he had made a...
TED-Ed
TED-ED: Why do airlines sell too many tickets? - Nina Klietsch
Have you ever sat in a doctor's office for hours, despite having an appointment? Has a hotel turned down your reservation because it's full? Have you been bumped off a flight that you paid for? These are all symptoms of overbooking, a...
Crash Course
Partial Pressures & Vapor Pressure: Crash Course Chemistry
This week we continue to spend quality time with gases, more deeply investigating some principles regarding pressure - including John Dalton's Law of Partial Pressures, vapor pressure - and demonstrating the method for collecting gas...
Crash Course
Equilibrium Equations: Crash Course Chemistry
In which Hank shows you that, while it may seem like the Universe is messing with us, equilibrium isn't a cosmic trick. Here, he shows you how to calculate equilibrium constant & conditions of reactions and use RICE tables all with some...
SciShow
Will the Periodic Table Ever Be Complete?
Recently, humanity filled the periodic table up to atomic number 118, which nicely rounds out that row. But are we done yet? Have we discovered all of the different elements? And what is an "island of stability?"
Curated Video
What Is Amortization?
Howcast - Learn about amortization in this Howcast finance video with expert Gregory McGraime.
Curated Video
How to Get Rid of Acne in Photoshop
Howcast - Learn how to get rid of acne in Photoshop from certified trainer Scott Strong of The Training Farm in NYC in this Howcast Photoshop tutorial.
Curated Video
What Is Calculation in Chess?
Howcast - Learn about chess calculation from Chess NYC in this Howcast video.
Curated Video
Spreadsheet formulas
Pupil outcome: I can calculate new data in a spreadsheet using formulas. Key learning points: - Formulas in a spreadsheet are used to perform common mathematical operations using data from cells. - Only cells that have a numerical data...
Curated Video
Predicting direction of reaction
Explains how comparing 𝑄 Q with 𝐾 K determines the direction of reaction shift
The Business Professor
Issued, Outstanding, and Fully Diluted Shares
What are Issued, Oustanding, and Fully Diluted Shares of Stock? Outstanding shares are the company's stock that has been authorized and issued. Outstanding shares represent investor or institutional ownership of the company. Fully...
The Business Professor
Quality of Earnings - Management Incentives
Management is incentivized by the calculation of a business' value. A quality of earnings report can affect the value of the business and, as a result, the incentives placed on management.
The Business Professor
Segmented Income Statements Using Variable Costing
Segmented income statements using variable costing approach is a useful tool for managerial accounting. It separates how fixed and variable expenses are accounted for.
The Business Professor
Change in Estimates - Long Term Depreciation - Accounting
Change in Estimates - Long Term Depreciation - Accounting
The Business Professor
Ch9. Video 9 - Employer Payroll Tax example
Employer Payroll Tax (Accounting) example