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A Comparative View of the Human and Animal Frame (Esqueleto humano comparado con el de animales)

Una interesante comparativa entre la anatomía humana y la de algunos animales como león, caballo, oso y gorila entre otros. Se trata de un trabajo realizado por Benjamin Waterhouse Hawki ...

X the Unknow? Basic

Find out how X-rays were discovered and how the use of X-rays revolutionized science and medicine.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be log ...

Where Would You Be Without Dalton? Basic

Find out how the ability of modern chemists to develop life-changing materials such as plastics depends on knowlege of atoms that was first introduced by John Dalton around 1800.

It is an educational c ...

War of the Current? Basic

Find out how the U.S. electrical grid came to carry alternating current and why direct current might make more sense today.

It is an educational content of CK-12 Foundation (to access some of the CK-12 ...

The Amazing Whee? Basic

Learn the history of the wheel and axle and why it has been called one of the most important inventions of all time.

It is an educational content of CK-12 Foundation (to access some of the CK-12 conten ...

Printing with Ligh? Basic

Learn about the first female photographer, how to make prints with UV light as she did, and how the process works.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents ...

Lucky Discover? Basic

Find out why the accidental discovery of electromagnetism made much of modern life possible because so many modern devices use electromagnets.

It is an educational content of CK-12 Foundation (to acces ...

History of Scienc? At grade

Evolution of science, major contributions in the history of science, and the scientific revolution.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be lo ...

Crystal Bal? Basic

Find out how and why Mendeleev invented his periodic table of the elements and how he used his table to predict unknown elements.

It is an educational content of CK-12 Foundation (to access some of the ...

Better Late than Neve? Basic

Learn why almost everything in the universe depends on atoms, how the idea of atoms came about, and how science might have been different if the idea had been accepted sooner.

It is an educational cont ...

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