In this video Paul Andersen explains how contact forces result from interatomic forces. The following forces are explained at the interatomic level: normal force, applied force, friction force, tension force, spring force, and buoyant...

Paul Andersen explains how energy is conserved within a system. In both macroscopic and microscopic collisions the amount of energy before the collision is equal to the amount after. He then defines heat as energy transfer between...

In her Auntie An-mei’s home, Jing-Mei reluctantly takes her seat at the eastern corner of the mahjong table. At the north, south and west corners are her aunties, long-time members of the Joy Luck Club. This gathering is the point of...

New ReviewFriction always acts to oppose sliding motion, even when it makes an object speed up. Learn how this works with a clear and simple example using a sliding disk and a moving block.

New ReviewSome of the simplest details around us hide surprisingly smart secrets. From the quick trick that makes peeling peaches effortless to the real reason escalators have those tiny bristles, these everyday discoveries will make you see...

Hannah Spencer's speech in full as Greens win Gorton and Denton by-electionCredit: PA

In this video, the teacher explores the fascinating stories behind the names of elements in the periodic table. From the origins of hydrogen and oxygen to the mythical beings and places immortalized in element names, the video uncovers...

One of my most popular videos is Lessons Learned Meeting: How to Make it Excellent. But, how do you capture those lessons learned in a structured log? I'll show you!

Create slime art with Steve Spangler! This is an excerpt from DIY Sci S3 Ep 4 Slime Experiments To watch this episode of DIY Scihref='https://xplorationstation.vhx.tv/diy-sci/season:3/videos/s3-ep-4-diy-slime' target='_blank'...

In this shorts video we will find the marginal relative frequency in a two-way bivariate data table. We will understand that the total row and column represents marginal frequency and the other cells of the table are joint frequency. ...

In this math video we will find unit rate using a table. We will be given a relationship where one quantity is a fraction. We will set up and use a table to find the unit rate. We will find the reciprocal and multiply the fractional...

In this Algebra 1 video, students quickly analyze a table of values and four possible functions to determine which function best represents the data. We begin by noticing the domain increases by 1 each time, but the range does not have a...

In this math video we will find unit rate using a table. We will be given a relationship where both quantities are fractions. We will set up and use a table to find the unit rate. We will find the reciprocal and multiply the...

In this shorts video we will learn how to factor a trinomial to answer a standardized math test question. We will first examine our answer choices and understand that each has been factored using a value of 8. We will use the table...

Bristlebots are tiny little robots with no "brain." They are powered by vibrations and move around randomly. Even if there is no brain, can you still influence how they move by changing their design? Find out in this fun robotics project!

It’s probably no surprise that food is a valued part of French culture. Learn more about common French dining habits and preferences for breakfast, lunch, and dinner. Review detailed appropriate dining practices and table etiquette so...

The Chinese have a saying that “food is the first necessity of the people.” Reflecting this vital role, great thought and care go into its preparation. The Chinese use a blend of ingredients—with contrasting flavors, colors, and...

Companies entering the country for the first time or those trying to expand their contacts are likely to find managers in South African companies receptive to meeting. South Africans tend to be formal at first in their meeting etiquette....

In this video, you will learn to use the one-way ANOVA, where there is only one dependent factor.

This video provides an elaborate solution to the practice exercise of the central limit theorem concept.

After learning how to use the one-way ANOVA, we will try to understand how to use the F-distribution to conclude the analysis results.

In this video, you will learn more about the student's t-test and t-distribution in detail.

This video elaborates on performing actual hypothesis testing through a demonstration.

This video provides the solution and explanations to the practice exercise on the normal distribution in the previous video.