TED-Ed
TED-Ed: Can you solve the time traveling car riddle? | Daniel Finkel
You and the professor have driven your DeLorean back to the past to fix issues with the spacetime continuum caused by your time traveling. But another DeLorean appears with older versions of you and the professor. The professors panic...
PBS
When Pi is Not 3.14
You've always been told that pi is 3.14. This is true, but this number is based on how we measure distance. Find out what happens to pi when we change the way we measure distance.
SciShow
Happy Tau Day!
June 28 is Tau Day! Join SciShow as we celebrate circles by exploring the many uses of twice pi.
3Blue1Brown
How pi was almost 6.283185
Happy pi day! Did you know that in some of his notes, Euler used the symbol pi to represent 6.28..., before the more familiar 3.14... took off as a standard?
SciShow
3 Ways Pi Can Explain Practically Everything
What’s irrational and never ends? Pi! Hank explains how we need pi to explain some of the most basic but most important principles of the universe, in honor of Pi Day.
3Blue1Brown
But WHY is a sphere's surface area four times its shadow?
Two proofs for the surface area of a sphere
TED-Ed
TED-Ed: The infinite life of pi - Reynaldo Lopes
The ratio of a circle's circumference to its diameter is always the same: 3.14159 and on and on (literally!) forever. This irrational number, pi, has an infinite number of digits, so we'll never figure out its exact value no matter how...
3Blue1Brown
But why is a sphere's surface area four times its shadow?
Two proofs for the surface area of a sphere
SciShow
π 'N' Science
It's pi day! Hank explains why this irrational number is important to scientists, and discusses a bit of a controversy that surrounds it.
Crash Course
Uniform Circular Motion: Crash Course Physics
Did you know that centrifugal force isn't really a thing? I mean, it's a thing, it's just not real. In fact, physicists call it a "Fictitious Force." Mind blown yet? To explore this idea further, this week Shini sits down with us to...
3Blue1Brown
How pi was almost 6.283185...
A bit of the history behind how we came to use the symbol "pi" to represent what it does today, and how Euler used it to refer to several different circle constants.
Bozeman Science
Concept 3 - Scale, Proportion, and Quantity
In this video Paul Andersen explains the importance of scale in science and engineering. The Universe varies in size along three scales: size, timespan, and energy. Many phenomenon are too small and fast, or two large and slow to...
Curated Video
Circumference Of a Circle
New ReviewA video entitled "Circumference of a Circle" which shows how to use diameter or radius to calculate the circumference of a circle.
Curated Video
Volume Of Cylinders
New ReviewA video entitled "Volume of Cylinders" that covers how changing radius and height impact volume.
Curated Video
How to Find the Circumference of a Circle |7.G.B.4
New ReviewLearn How to Find the Circumference of a Circle AND the Perimeter of a Semi-Circle!* Wait… what’s the difference between circumference and *perimeter*? What’s the best way to remember those circle formulas? And should you use *3.14* or...
Curated Video
How to Win the Circumference vs. Height Bar Bet
Howcast - Learn how to win the circumference of a beer glass versus the height of a stack of napkins bar bet in this Howcast video.
Curated Video
How to Gauge Your BMI by Measuring Your Neck
Howcast -Measure the circumference of your neck, and use the measurement to determine your BMI.
Curated Video
Understanding constructing a circle
Pupil outcome: I can recognise a circle as a collection of points equidistant from a fixed point. Key learning points: - A pair of compasses can be used to draw circle with a particular radius. - All the points on the circle will be the...
Curated Video
Area of a sector
Pupil outcome: I can calculate the area of a sector. Key learning points: - Using fractions, you can calculate the area of a sector of a circle. - An exact answer may be given in terms of π - Comparisons can be made between the area and...
Curated Video
Calculating arc length
Pupil outcome: I can calculate the arc length of a sector and the sector's perimeter. Key learning points: - Using fractions, you can calculate part of the circumference. - This gives the length of the curved section of a sector. - To...
Curated Video
Circumference of a circle
Pupil outcome: I can use the relationship C=πd to calculate unknown lengths in contexts involving the circumference of circles. Key learning points: - The formula can be used to find the circumference when you know the diameter. - The...
Curated Video
Multiplicative relationships in circles
Pupil outcome: I can recognise that there is a constant multiplicative relationship (π) between the diameter and circumference of a circle. Key learning points: - There is a multiplicative relationship between the radius and diameter of...
Curated Video
P6 Circles: Apply the correct concepts!
Learn how to apply the correct concepts to solve this circles question.
Curated Video
C++: Compute the Area and Circumference of a Circle
Welcome to our complete C++ programming tutorial series, designed for beginners and anyone looking to strengthen their understanding of C++ coding! In this video series, we’ll cover everything you need to know to get started with C++,...