Science360
Math and its infinite connections - Scientists & Engineers on Sofas (and other furnishings)
Two parts math and one part writer make Jordan Ellenberg a very readable mathematician. Yes, Ellenberg is a professor of mathematics at the University of Wisconsin-Madison, with a Ph.D. in mathematics from Harvard that allows him to...
The Backyard Scientist
Fire Vortex Cannon
Pretty cool huh? The fire rings are amazing! How do you guys like the new style of video? In this video I show how easy it is to make a vortex shooter out of an old paint bucket. All you need to make the vortex ring cannon is an old...
Curated Video
Solving Mixed Number Multiplication Problems with the Standard Algorithm
In this video lesson, students learn how to solve mixed number multiplication problems using pictures and the standard algorithm. They are reminded of key concepts such as multiplication as equal groups, algorithms for multiplying whole...
Curated Video
Comparing Fractions: The Importance of the Same Whole
In this video, students learn about equivalent fractions and the importance of comparing fractions to the same whole. Through visual models and real-world examples, they understand that fractions represent parts of a whole that are...
Curated Video
Subtracting Mixed Fractions Using an Area Model
In this video, students learn how to subtract mixed fractions using an area model. The teacher explains the importance of understanding the different parts of a fraction and demonstrates how to represent fractions using area models....
3D Print General
3D Printed Predator Bust
In this quick video I 3D print and paint a Predator bust designed by Geoffro. Link to bust: http://bit.ly/2Oyl0Me
Two Minute Music Theory
Coda: Egyptian Music Theory
A study of the instruments used in Ancient Egypt
Programming Electronics Academy
How to Assemble the DFRobot Pirate 4WD Mobile Platform
This video walk through assembling the popular DFRobot Pirate. It focuses mostly on what the instruction manual leaves out, which I hope will save you some time!
Brian McLogan
Learn to determine the points where a function is non differentiable
👉 Learn how to determine the differentiability of a function. A function is said to be differentiable if the derivative exists at each point in its domain. To check the differentiability of a function, we first check that the function is...
Financial Times
The internet of broken things: it may be time to start again
The internet has become an indispensable tool, but the FT’s Hannah Kuchler thinks it is in urgent need of repair. She also says that as we put more physical objects online, from self-driving cars to nuclear power plants, risk of fatal...
Brian McLogan
Learning to write the domain of a rational function with an asymptotes and hole
👉 Learn how to find the domain of rational functions. Recall that the domain of a function is the set of possible input values (x-values) of the function. For a rational function, the denominator cannot be zero. Thus, to find the domain...
Brian McLogan
How to evaluate the left right and general limit from a graph with holes
👉 Learn how to evaluate the limit of a function from the graph of the function. The limit of a function as the input variable of the function tends to a number/value is the number/value which the function approaches at that time. When...
Curated Video
Adding Mixed Numbers Using an Area Model
In this video, the teacher explains how to add mixed numbers using an area model. They emphasize the importance of understanding the whole number and fraction components of a mixed number, and how to correctly represent them in the area...
The Backyard Scientist
Aluminum Vs Melons = Hand Grenade?!
Pouring molten aluminum in a watermelon turned out to be really popular, So I poured aluminum in two more melons, honeydew and cantaloupe. It turned out really cool, giving a perfect cast of the inside of a melon. It looked just like a...
Brian McLogan
Are endpoints of a graph discontinuities?
👉 Learn about the characteristics of a function. Given a function, we can determine the characteristics of the function's graph. We can determine the end behavior of the graph of the function (rises or falls left and rises or falls...
Curated Video
Adding Mixed Numbers Using an Area Model
In this video, students learn how to add mixed numbers using an area model. The teacher explains the common mistake of not understanding the significance of the whole number in the mixed fraction. Through the use of area models, students...
NASA
NASA | Swift Finds 'Missing' Active Galaxies
Most large galaxies contain a giant central black hole. In an active galaxy, matter falling toward the supermassive black hole powers high-energy emissions so intense that two classes of active galaxies, quasars and blazars, rank as the...
Brian McLogan
Learn to evaluate the limit from the left right and general of a graph
👉 Learn how to evaluate the limit of a function from the graph of the function. The limit of a function as the input variable of the function tends to a number/value is the number/value which the function approaches at that time. When...
Science360
Ulcer Answers
Ugh, that sinking feeling in your stomach. But for many Americans the sinking feeling is accompanied by heartburn, bloating, cramping and other general discomfort. Stomach ulcers affect nearly four million American's every year. So, what...
Boulder Creek International
The Frontier Ukraine: Investigating the MH17 Tragedy
WARNING: This video contains footage of violence and death, some viewers may find distressing. The Frontier Ukraine part 5/7: This video discusses the investigation into the downing of Malaysia Airlines Flight MH17 in 2014. It explores...
Next Animation Studio
Trapped miners still alive, many days after cave-In
Rescuer workers pulled out a note that told them 12 miners were still alive deep underground, but water was rising around the survivors
Odd Quartet
Making The Loudest Metronome
This video looks at how you can build a very loud meteronome
Physics Girl
STRANGE Sand Acts Like Liquid
Bubbling air through sand can cause it to act like a liquid. Dianna Cowern and William Osman try to reproduce this popular GIF on Physics Girl. Sand liquefied!
Programming Electronics Academy
LED Stuffed Pumpkin :: Halloween Arduino Project
It all started with a trebuchet. I was inspired by helping a friend who built a small trebuchet on his birthday and thought it would be fun to make a larger one that could shoot pumpkins. The idea was that during thanksgiving on the farm...