Saturday, July 22, 2017

Meme Tube

Meme tube offers free great videos from the internet.

Aired February 4, 2010 on BBC Four (Epissode 3/3) Play all videos: bit.ly – The explosive story of chemistry is the story of the building blocks that make up our entire world – the elements. From fiery phosphorous to the pure untarnished lustre of gold and the dazzle of violent, violet potassium, everything is made of elements – the earth we walk on, the air we breathe, even us. Yet for centuries this world was largely unknown, and completely misunderstood. In this three-part series, professor of theoretical physics Jim Al-Khalili traces the extraordinary story of how the elements were discovered and mapped. He follows in the footsteps of the pioneers who cracked their secrets and created a new science, propelling us into the modern age. In the final part, Professor Al-Khalili uncovers tales of success and heartache in the story of chemists’ battle to control and combine the elements, and build our modern world. He reveals the dramatic breakthroughs which harnessed their might to release almost unimaginable power, and he journeys to the centre of modern day alchemy, where scientists are attempting to command the extreme forces of nature and create brand new elements. via www.AtheistMedia.com –

Aired February 4, 2010 on BBC Four (Epissode 3/3) Play all videos: bit.ly – The explosive story of chemistry is the story of the building blocks that make up our entire world – the elements. From fiery phosphorous to the pure untarnished lustre of gold and the dazzle of violent, violet potassium, everything is made of elements – the earth we walk on, the air we breathe, even us. Yet for centuries this world was largely unknown, and completely misunderstood. In this three-part series, professor of theoretical physics Jim Al-Khalili traces the extraordinary story of how the elements were discovered and mapped. He follows in the footsteps of the pioneers who cracked their secrets and created a new science, propelling us into the modern age. In the final part, Professor Al-Khalili uncovers tales of success and heartache in the story of chemists’ battle to control and combine the elements, and build our modern world. He reveals the dramatic breakthroughs which harnessed their might to release almost unimaginable power, and he journeys to the centre of modern day alchemy, where scientists are attempting to command the extreme forces of nature and create brand new elements. via www.AtheistMedia.com –

Turn Pennies to Silver and Gold (Chemistry Trick)

Posted by meme video guy On January - 24 - 2011

In a display of alchemy we turn copper pennies into silver and finally to gold. Obviously it’s a chemistry trick but still impressive. First we get 30g of zinc sulfate and dissolve it into 100mL of water. Zinc sulfate was made back in our video on making a copper sulfate and zinc battery: www.youtube.com If you don’t have zinc sulfate or can’t make it, you can also use zinc chloride. This can be made by simply mixing hydrochloric acid with zinc metal and waiting until the fizzing stops. Then we drop in several cut strips of zinc metal. Zinc metal was obtained from our video on getting useful materials from batteries: www.youtube.com The solution is heated to a boil and copper pennies, that have been thoroughly washed/cleaned, are dropped in. They must touch the zinc in order for this reaction to work. Leave it in for five to ten minutes. The zinc metal dissolves and releases electrons that go into the copper and give it a negative charge. The zinc ions in solution now redeposit form a thin layer of zinc metal. Giving the coin a silvery color. Now the smart physical chemist might wonder how this can possibly work. Overall we’re going from zinc metal to zinc metal and at first it seems like we’re missing something about thermodynamics. What is the driving force? I’ve searched the literature and there doesn’t seem to be a consensus among scientists, some claim it’s a surface free energy issue with zinc having a lower potential on copper than in free solution (at high

BBC | Chemistry: A Volatile History | Ep1 Discovering the Elements (1 of 6)

Posted by meme video guy On January - 24 - 2011

Aired January 21, 2010 on BBC Four (Episode 1/3) – Play all videos: bit.ly – The explosive story of chemistry is the story of the building blocks that make up our entire world – the elements. From fiery phosphorous to the pure untarnished lustre of gold and the dazzle of violent, violet potassium, everything is made of elements – the earth we walk on, the air we breathe, even us. Yet for centuries this world was largely unknown, and completely misunderstood. In this three-part series, professor of theoretical physics Jim Al-Khalili traces the extraordinary story of how the elements were discovered and mapped. He follows in the footsteps of the pioneers who cracked their secrets and created a new science, propelling us into the modern age. Just 92 elements made up the world, but the belief that were only four – earth, fire, air and water – persisted until the 19th Century. Professor Al-Khalili retraces the footsteps of the alchemists who first began to question the notion of the elements in their search for the secret of everlasting life. He reveals the red herrings and rivalries which dogged scientific progress, and explores how new approaches to splitting matter brought us both remarkable elements and the new science of chemistry. via www.AtheistMedia.com –

Chemistry VSEPR Theory

Posted by meme video guy On January - 24 - 2011

Animation of different types of molecular structures. Blue represents central atom, white represents outer atoms, red represents lone electron pair. This is my own orignal video, but I do not own the music. Music: Nunley’s Carousel, by Billy Joel

Telekinetic Pen

Posted by meme video guy On January - 10 - 2009

Watch as an ordinary Sharpie Pen comes alive! You can make it move with your mind…or can you?

DIY Ornaments

Posted by meme video guy On January - 10 - 2009

Make your own awesome nerdtacular ornaments to give as gifts or decorate your tree!

“Happy Mole Day to You” Chemistry Song

Posted by meme video guy On January - 10 - 2009

Mole Day is a day to celebrate chemistry and the unit “mole”. Chemistry students need help learning the mole. This chemistry song about the mole unit and Mole Day was used to create this video. Its purpose is to make it easier to remember and understand the definitions of the mole in an entertaining way. Mole Day is celebrated @ 6:02AM on Oct 23rd and if your school uses a 4X4 block schedule, then you can also celebrate it on June 2nd @ 10:23AM.

Chemistry Music Video: It’s A Family Thing

Posted by meme video guy On January - 10 - 2009

Song 14 from my CD, “Schrodinger’s Cat Strikes Back!”, visit my web site at www.markrosengarten.com for more!

Lyrics:

Alkanes, Alkanes, they’re driving me insane
All single-bonded carbons joined together in a chain
C-n-H-2-n plus 2’s the formula we use
Methane, propane and octane are good fuels to choose!

Alkenes, Alkenes, their structure really screams
While sleeping, August Kekule had double-bonded dreams
If you have five carbons, H’s will be ten
They undergo addition when you add a halogen

Alkynes, Alkynes, the molecules that shine
They have got a triple bond somewhere along their spine
They have two less H’s than their alkene analogues
Some are used to make the toxin that’s produced by frogs!

Hydrocarbons molecules that have some H and C
They form the basic building blocks that make both you and me
Without hydrocarbons, life just can’t exist
If they were not with us, they would sure be missed!

Alco-alco-alcohols have a hydroxyl group
An OH that is bonded to the chain, yeah, that’s the scoop
It’s covalent bonded, so the sucker’s not a base
Methanol evaporates real quick and leaves no trace!

If you have carboxyl group that’s sticking out the end,
Then an organic acid is what you have my friend
If carboxyl group is in the middle of the chain,
Then you have an ester, the odor’s pretty plain

If you have a carbonyl, a double-bonded O
One end of the molecule, that’s where it needs to go
Dead organic samples can be soaked in aldehyde
It’s great for preservation, now just open wide!

If the carbonyl is in the middle, not the end
A ketone’s what you have, your fingernails you’ll tend!
They are good dissolvers of much nonpolar stuff
2-propanonane is good for when the going’s really rough!

Amines and amides both have a nitrogen
Amines end in NH2 and crop up now and then
Amides also have a double-bonded O
Now my song is over, it’s time for me to go!

Hydrocarbons molecules that have some H and C
They form the basic building blocks that make both you and me
Without hydrocarbons, life just can’t exist
If they were not with us, they would sure be missed!

Sometimes they have some other atoms dangling from the chain
Identify a family without a lot of pain
Find which group belongs to which organic family
Just open up your eyes and the world belongs to thee!

Chemistry experiment 2. – Coloured flask.

Posted by meme video guy On January - 10 - 2009

Sugar+NaOH and KMnO4.

Description + explanation of the experiment:

http://81.207.88.128/science/chem/exps/chameleon/index.html

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