From the ability to see “invisible” types of light to the power to taste all over their body, meet five incredible animals whose super senses far surpass our own! Chapters STAR-NOSED MOLES 3:04 HARBOR SEALS 4:56 CATFISH 6:49 BEARS 8:26

Water is both essential and unique. Many of its particular qualities stem from the fact that it consists of two hydrogen atoms and one oxygen, therefore creating an unequal sharing of electrons. From fish in frozen lakes to ice floating...

We’ve all heard the phrase “opposites attract.” It may or may not be true for people, but it’s definitely true in organic chemistry. In this episode of Crash Course Organic Chemistry, we’re learning about electronegativity, polarity,...

Paul Andersen explains how cells are selectively permeable with the help of their cell membrane. The main constituents of the cell membrane, including cholesterol, glycolipids, glycoproteins, phospholipids, and proteins are included. ...

Some satellites orbit in the same direction the planet rotates, which means they get a boost for their launch, but most have orbits where that isn’t ideal, and that creates some challenges for engineers.

In this video Paul Andersen explains how the polarity of water makes life on the planet possible. Oxygen is highly electronegative and pulls the electrons closely creating a partial negative charge. The polarity of water (and the...

Humans often take inspiration from nature when coming up with inventions, and this includes breakthroughs in fabric design that help to forward the fabulous and functional world of fashion.

Water can dissolve more substances than anything else on earth...so why doesn't it dissolve everything away?

Paul Andersen describes the four major biological molecules found in living things. He begins with a brief discussion of polymerization. Dehydration synthesis is used to connect monomers into polymers and hydrolysis breaks them down...

Paul Andersen begins with a brief description of NASA discoveries related to Mars, Mercury and water. He then explains why water is required for life. He finally uses a simulation to show you why water acts as a wonderful solvent and...

Mr. Andersen shows you how to determine if a bond is nonpolar covalent, polar covalent, or ionc.

In this video Paul Andersen explains how the quantum mechanical model of the atom refined the shell model. Uncertainty of the position of the electron as well as spin forces chemists to create an improved model. In this model the...

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Polar bears are actually considered marine mammals, sporting partially webbed feet and swimming up to 30-60 miles across open ocean.

5 Cool tricks from physics and science

How do you convert equations between rectangular and polar forms? This video covers a variety of problems step-by-step by using some properties of polar functions.

What is the polar coordinate plane and how do we convert points between rectangular and polar form? We start this video by graphing polar points, then we learn how to convert between polar and rectangular/Euclidean form.

Amino acids are the building blocks of proteins, each composed of a central (alpha) carbon bonded to a hydrogen atom, amino group, carboxyl group, and a variable "R" group that defines its properties. Out of hundreds found in nature, 20...

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.

There are 4 main types of carbon-based molecules important to life. They are the building blocks for every living organism on this planet. In this video, I will give you a quick introduction to each type with some fun examples.

Beautiful Bonds: The World of Covalent and Metallic Solids

Covalent solids, also known as network solids, are materials with atoms bonded together in a continuous network by covalent bonds, resulting in large, rigid structures....

Molecular Matters: Polar and Non-Polar Solids

Polar molecular solids are crystalline solids with a permanent dipole moment due to differences in electronegativity between atoms. These solids have strong dipole-dipole...

For decades, Antarctic sea ice trends seemed to defy climate change, until…they didn’t. In just two years, Antarctica lost as much sea ice as the Arctic lost in three decades. Statistics say that the record low sea ice in 2023 was a 1 in...

Un área de bajas presiones que se forma entre las latitudes polar y tropical, cuando el aire frío y el caliente chocan y comienzan a girar uno alrededor del otro. <br/<br/>>

Twig - Ciencias de la tierra