In Da Club – Membranes & Transport: Crash Course Biology #5

Hank describes how cells regulate their contents and communicate with one another via mechanisms within the cell membrane.

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“Concert” music used with permission from Chameleon Circuit.

This video uses sounds from Freesound.org: a list of these sounds can be found in the Google document here, along with the citations for this video: http://dft.ba/-1ZRl

Table of Contents time codes:

1) Passive Transport – 1:17

2) Diffusion – 1:25

3) Osmosis – 2:12

4) Channel Proteins- 4:37

5) Active Transport – 4:58

6) ATP – 5:37

7) Transport Proteins – 6:19

8) Biolography – 6:37

9) Vesicular Transport – 9:02

10) Exocytosis – 9:21

11) Endocytosis – 9:50

12) Phagocytosis – 9:57

13) Pinocytosis – 10:29

14) Receptor-Mediated Endocytosis – 10:48

TAGS: crashcourse, hank green, biology, chemistry, cell, cell membrane, selective permeability, selectively permeable, active transport, passive transport, solution, concentration, concentration gradient, atp, adenosine tri-phosphate, jens christian skou, vesicular transport, phagocytosis, endocytosis

The Persians & Greeks: Crash Course World History #5

In which John compares and contrasts Greek civilization and the Persian Empire. Of course we’re glad that Greek civilization spawned Read more of this post

Eukaryopolis – The City of Animal Cells: Crash Course Biology #4

Hank tells us about the city of Eukaryopolis – the animal cell that is responsible for all the cool things that happen in our bodies.

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More info. on the structures described in this video linked to in the Google Document here: http://dft.ba/-1TR_

Table of Contents time codes

1) Robert Hooke 1:59

2) Cilia/Flagella 2:52

3) Cell Membrane 3:32

4) Cytoplasm/Cytoskeleton/Centrosomes 3:58

5) Endoplasmic Reticulum 4:41

6) Ribosomes 5:45

7) Golgi Apparatus 6:00

8) Lysosomes 6:47

9) Nucleus 7:06

10) Mitochondria 9:14

TAGS: crashcourse, biology, animal cells, cell membrane, eukaryote, eukaryotic, organelle, organ, tissue, muscle, nerve, animalia, robert hooke, cilia, flagella, microtubules, cytoplasm, ctyoskeleton, centrosome, nucleus, nucleoplasm, nucleolus, endoplasmic reticulum, ribosome, amino acid, polypeptide, golgi apparatus, golgi, lysosomes, DNA, chromatin, rRNA, mRNA, mitochondria

Ancient Egypt: Crash Course World History #4

In which John covers the long, long history of ancient Egypt, including the Old, Middle and New Kingdoms, and even a couple of intermediate periods. Learn about mummies, pharaohs, pyramids and the Nile with John Green.

Our friends at Thought Bubble, who do the amazing graphics and animations for the show, are kickstarting a documentary. Check it out and join us in funding it: http://www.kickstarter.com/projects/sapiencefilm/sapience-the-search-for-wisdom

Resources:

Hieroglyphs, Egyptian gods, and more: http://dft.ba/-egyptA

Mummies!: http://dft.ba/-mummies

Pyramids!: http://en.wikipedia.org/wiki/Pyramid

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Biological Molecules – You Are What You Eat: Crash Course Biology #3

Hank talks about the molecules that make up every living thing – carbohydrates, lipids, and proteins – and how we find them in our environment and in the food that we eat.

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Resources for this episode in the Google Document here: http://dft.ba/-citations2

TAGS: biological molecules, carbohydrates, lipids, proteins, nucleic acids, food, biolography, william prout, urea, energy, monosaccharides, glucose, fructose, disaccharides, sucrose, polysaccharides, simple sugars, cellulose, starch, glycogen, glycerol, fatty acid, triglyceride, phospholipid, steroid, cholesterol, enzymes, antibodies, hormones, amino acids, nitrogen, polypeptides, protein synthesis, biology, molecule, crashcourse, hank green

Office Hours: Water

Hank answers some questions and responds to some concerns about his video on water. Watch that video here: http://www.youtube.com/watch?v=HVT3Y3_gHGg

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TAGS: crashcourse, biology, water, hank green, office hours, polar, polarity, life, carbon, steam, water vapor, ice, mass, team, editing, filming, graphics

Mesopotamia: Crash Course World History #3

In which John presents Mesopotamia, and the early civilizations that arose around the Fertile Crescent. Topics covered include the birth of territorial kingdoms, empires, Neo-Assyrian torture tactics, sacred marriages, ancient labor practices, the world’s first law code, and the great failed romance of John’s undergrad years.

Resources:

The British Museum’s Mesopotamia site: http://dft.ba/-mesopotamia

The Epic of Gilgamesh: http://dft.ba/-gilgatext or get a hard copy at http://dft.ba/-gilgamesh2

Mesopotamia: Assyrians, Sumerians, Babylonians by Enrico Ascalone: http://dft.ba/-meso

The Mesopotamians by TMBG: http://dft.ba/-tmbmesopotamians

Credits:
Written by Raoul Meyer and John Green
Produced by Stan Muller
Animations by Smart Bubble Society: http://thoughtbubble.org/
Thought Bubble team:
Suzanna Brusikiewicz
Jonathon Corbiere
Allan Levy
Jin Kyung Myung
James Tuer
Adam Winnik
Original Music: Jason Weidner
Script Supervisor & Doll Costumer: Danica Johnson
Set Design: Donna Sink
Props: Brian McCutcheon

Photos courtesy of:
Mbzt
Hardnfast
Marie Lan-Nguyen

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Water – Liquid Awesome: Crash Course Biology #2

Hank teaches us why water is one of the most fascinating and important substances in the universe.

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Review:
Re-watch = 00:00
Introduction = 00:42
Molecular structure & hydrogen bonds = 01:38
Cohesion & surface tension = 02:46
Adhesion = 03:31
Hydrophilic substances = 04:42
Hydrophobic substances = 05:14
Henry Cavendish = 05:49
Ice Density = 07:45
Heat Capacity = 09:10

Citations:
http://www.extension.umn.edu/distribution/youthdevelopment/components/0328-02.html
http://www.uni.edu/~iowawet/H2OProperties.html
http://www.hometrainingtools.com/properties-water-science-teaching-tip/a/1274/
http://science.howstuffworks.com/environmental/earth/geophysics/h2o7.htm
http://www.robinsonlibrary.com/science/chemistry/biography/cavendish.htm
http://chemistry.mtu.edu/~pcharles/SCIHISTORY/HenryCavendish.html
http://www.nndb.com/people/030/000083778/
http://www.notablebiographies.com/Ca-Ch/Cavendish-Henry.html

TAGS: water, hydrogen, oxygen, molecule, covalent bond, cohesion, adhesion, polarity, hydrogen bond, surface tension, capillary action, hydrophilic, hydrophobic, ionic bond, ion, universal solvent, henry cavendish, chemistry, specific gravity, density, heat capacity, evaporation, biology, crashcourse, crash course, hank green

Indus Valley Civilization: Crash Course World History #2

In which John Green teaches you about the Indus Valley Civilization, one of the largest of the ancient civilizations. John teaches you the who, how, when, where and why of the Indus Valley Civilization, and dispenses advice on how to be more successful in your romantic relationships.

Additional Resources:

Empires of the Indus – http://dft.ba/-1Kwn

Indus Valley on Wikipedia – http://dft.ba/-1Kwp

Lots of Indus Valley Civ. photos – http://dft.ba/-1Kwq

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