Carbon Dioxide Cannon (scientists make mistakes!)

Three fails and then success with our carbon dioxide cannon.

via Periodic Videos.


Carbon Dioxide Cannon - Extra Shot

2000 frames per second recording

via Nottingham Science.


Wade’s Rules - Periodic Table of Videos

Kenneth Wade recently passed away. Here we discuss his time as a student in Nottingham and his famous (in some chemistry circles) Wade’s Rules.

Speaking in this video are Martyn Poliakoff and Debbie Kays.

From the School of Chemistry at The University of Nottingham: http://bit.ly/NottChem
Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

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Blue Flame Thrower - Periodic Table of Videos

Re-visiting diethyl zinc to see if we can re-create the blue flame reported by the man who discovered the compound.

Featuring professors Stephen Liddle and Simon Woodward.

A good paper on Edward Frankland’s discoveries: http://bit.ly/1elDJ4y

From the School of Chemistry at The University of Nottingham: http://bit.ly/NottChem

Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

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The world’s greatest autograph book

Isaac Newton, Charles Darwin, Benjamin Franklin, The Queen and the man who invented the Internet…

How much do you think this collection of signatures is worth?

The Royal Society Charter Book must surely be the world’s most impressive autograph collection?

With thanks to the Royal Society, especially Keith Moore and Joanna McManus.

Also featuring Professor Martyn Poliakoff and music by Alan Stewart.

Mendeleev’s business card: http://youtu.be/GuCR_Webyi8

From the School of Chemistry at The University of Nottingham:
http://bit.ly/NottChem
Periodic Videos films are by video journalist Brady Haran:
http://www.bradyharan.com/

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Exploding Hydrogen Bubbles

The title pretty much says it.

From the School of Chemistry at The University of Nottingham: http://bit.ly/NottChem

Film by James Hennessy and Brady Haran

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Amazing piece of metal (speculum)

This small disc of metal - made from speculum - is an important part of history. The metal is an alloy of tin and copper with some arsenic thrown in. Discussed by Professor Martyn Poliakoff at the Royal Society, in London. It is the primary mirror from Sir Isaac Newton’s original reflecting telescope.

Brady inside big telescopes: http://bit.ly/telescopetours

via periodicvideos:

Most amazing mirror ever?

Burning Magnesium in Water - Periodic Table of Videos

What happens when burning magnesium is dunked in water? We filmed it with the slow motion camera.

Here is the magnesium in CO2 video mentioned: http://youtu.be/0dSMzg0UPPo
Magnesium: http://youtu.be/FKkWdizutxI
More slow motion: http://bit.ly/chemslomo

From the School of Chemistry at The University of Nottingham: http://bit.ly/NottChem

Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

Sound effects: Alan Stewart - http://www.youtube.com/AlanKey86

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Pouring Mercury into Liquid Nitrogen (slow motion)

via periodicvideos:

Mercury freezes at -39C —— Nitrogen boils at -196C

The three slow motion sequences in this video can be seen in more detail at…
Mercury in small container: http://youtu.be/-Yf_Mi-ZHjw
Mercury in big flask: http://youtu.be/VTeeOs2Ok6I
Copper in N2: http://youtu.be/0gLBBbNXn4g

More slow mo from periodicvideos: http://bit.ly/chemslomo

Periodic Videos is a project by video journalist Brady Haran: http://www.bradyharan.com/
(James Hennessy filmed and edited this video)

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The Professor in Russia - Periodic Table of Videos

Professor Poliakoff and Ruthenium - discovered by Karl Claus and named after Russia. More Christmas stuff at http://periodicvideos.blogspot.co.uk/2013/12/a-christmas-lecture.html

via Periodic Videos.


Professor Q and A - Periodic Table of Videos

Answering viewer questions to coincide with our 500th video.

More Professor Q and A - Periodic Table of Videos- Periodic Table of Videos

A second Q and A video to mark our 500th video.

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Two Colour Chemiluminescent Clock Reaction - Periodic Table of Videos

Dr Sam Tang adds hydrogen peroxide to pyrograllol, formaldehyde and luminol.

Chemiluminescence is caused by molecules being formed with some of their electrons in a higher energy level and then losing that energy as light. In the first stage, pyrogallol (1,2,3-trihydroxy-benzene) reacts with hydrogen peroxide and formaldehyde to generate singlet oxygen (O2 with the electrons paired together). This then converts to triplet oxygen (O2 with two electrons unpaired — see our video of magnetic oxygen) with a weak emission of red light. The reactions also generate heat, which is why the temperature goes up and it’s the liberated oxygen gas which causes the bubbling. Then the luminol reacts by losing N2 from the molecule to form an excited state product to emit blue light. You can see that with all of these reactions going on at the same time, it’s not easy to write down what’s happening in just a few simple equations.

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Two Colour Chemiluminescent Clock Reaction (extra footage)

via Nottingham Science.
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Tsar’s Vodka and Gold - Periodic Table of Videos

Experimenting with Aqua Regia again - this time because of a bottle acquired by Professor Poliakoff in Russia. With thanks to senior technician Neil Barnes, as always!

Periodic Videos films are by video journalist Brady Haran:
http://www.bradyharan.com/

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Chemistry Nobel Prize 2013 - Periodic Table of Videos

The 2013 Nobel Prize in Chemistry is shared by Martin Karplus, Michael Levitt and Arieh Warshel for their work in the field of computational chemistry.

Professor Martyn Poliakoff discusses.

Periodic Videos films are by video journalist Brady Haran:
http://www.bradyharan.com/

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Magic Jug - Periodic Table of Videos

Some colour change reactions demonstrated by Dr Sam Tang from the University of Nottingham.

Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

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Rhodium (new) - Periodic Table of Videos

periodicvideos:

We’ve made a new Rhodium video following our visit to Johnson Matthey’s Noble Metals factory!