chemistry bc
TRANSCRIPT
The Science Behind Superpowers
Chemistry Broad Curriculum
By: Kanchan Parsad Katherine Bowen William Griffin Daire Carroll Laura O'Brien Emma Byrne Kynan Delaney Clarissa Macapagal
Topics• Flying & Levitation in Superman
• Healing in Captain America
• Invisibility in The Invisible Woman
Flying & Levitation in Superman
Possibilities •Ultrasonic levitation•Wind tunnels•Diamagnetic levitation
Diamagnetic Levitation •NASA has been floating strawberries, frogs and mice.
•http://www.sciencedirect.com/science/article/pii/S0273117709005985
•Super strong electromagnets and…
•DIAMAGNETIC OBJECTS
Diamagnetism •Diamagnetism occurs in all
substances which have paired electrons •Unlike ferro or paramagnets they are repulsed by magnetic fields
•In most substances the repulsive force is overcome by the stronger ferro or paramagnetic interactions
•NOT IN WATER
•Water only experiences diamagnetic forces
•Frogs are basically water with some other bits floating in it
•The result is: levitating frog – YouTube
••Force is spread evenly throughout frogs body because every water molecule is feeling it
•Force remains as long as magnetic field remains
•The frog seems to be having fun
Science of Levitation & Flying • Arriving on earth
superman’s strength increases hundredfold.
• His body, which is developed to withstand the gravity on Krypton, is suddenly presented with a complete change.
Science of Levitation & Flying
The force of attraction towards the earth is a fraction of his homeland and his strength comes as a direct result of that. Such actions are analogous with astronauts in space who (even clad in space suits masses of equipment) can lift of the ground and remain in the air with ease.
Science of levitation & flying
•One interesting topic we came across involved a prediction the writers of Superman made. During WWII in 1945 the writers of comic effectively predicted the development of the Atomic Bomb. The FBI noted that the ghostwriter of superman had talked of “evil scientists” formulating an “electron smasher” in their laboratory
Captain AmericaAccelerated Healing
Accelerated Healing in HumansFibroblast growth factors
● Small polypeptide growth factors● Plays a major role in healing the wounds● Binds to the heparin-like
glycosaminoglycans● Gives rise to granulation tissue
Regenerating Our Bodies
• Accelerating the pace at which the body heals itself
• Salamander’s amputated limb will grow back in 30-90 days
• Full regain of function
Replicating This Process in Humans?
• This is possible in a human foetus
• Adults just develop scar tissue
• Induce processes we knew how to do when we were a foetus – Cellular therapies – Development of new materials
• Steve Badylak2006 - regeneration of the tissue of a finger using cells from a pig’s intestine
• Regain of full function after 4 weeks
Replicating This Process in Humans?
InvisibilityThe Invisible Woman (Sue Storm)
Definition- Cannot be seen in the visible spectrum
- Most natural form = transparency
- Radio, infrared and UV wavelengths
- Ultimate form of camouflage
Methods of Invisibility- Carbon nanotube sheets- Sheets conduct heat = 'mirage effect' of light rays
- Object behind appears invisible
- Metamaterials- invisibility cloak
- Electric and magnetic properties of cloaking device bend light around object
- Cuckoo wasp
- Uses cloak of invisibility
- Mimics chemical composition of beewolf's cuticle shell
- Enables access to nest burrow where lays eggs and kills beewolf larva
Invisibility in Nature
Is It really possible?
Living organism
The Scale!
Dr. Atsushi Miyawaki
Chemical Reagent
They were also able to turn some of the unmarked tissue transparent
Biological tissue
TRANSPARENT!
UREA SOLUTION
I wonder if urea solution can really
reduce the light scattering of tissues
that could possibly make it
transparent
UREA➢ Organic Compound➢ CO(NH2)2➢ Carbonyl group with 2 organic amines attached➢ Waste substance in urine
Synthesize urea
artificially from
inorganic materials
without a living
organism being
involved! Friedrich Wohler
“Ammonium Cyanate is UREA”
silver cyanate + ammonium chlorideAgNCO + NH4Cl → (NH2)2CO + AgCl
Tissue samples must be soaked in urea solution for a long time (e.g. months) to achieve the required
clearing of the objectThe time depends on the type of
tissue as well as the targeted depth and clarity of the object
The scale is much slower than some of the clearing reagents
used before…..
Mixture of Benzyl-alcohol and
Benzyl-benzoate (BABB) Can clear tissues in hours!
Benzyl-alcohol: C7H8O
Benzyl-benzoate: C14H12O2
Similar Refractive
Index
IS IT REALLY POSSIBLE?
YES!... the transparency of the tissue proved it…
The depth and clarity of the organs and potentially the human
body is much deeper than tissuesInvestigations are still being carried out to somewhat lower levels of transparency
“This would open the door to experiments that have simply never been possible before” - Dr. Miyawaki
Experiment:OPTICAL ILLUSION➢ How we look at things with
reflection and refraction
Refractive Index➢ This is the
dimensionless number that describes how light propagates through an optical medium.
References:-http://digitaljournal.com/article/311154-http://www.biotechniques.com/news/biotechniquesNews/biotechniques-325032.html#.Uv4tgnmCbwIhttp://9.thumbs.beta.scribol.com/4/sites/default/files/images/http-inlinethumb27.webshots.com-40666-2378102250104181437S600x600Q85.jpg?a=bhttp://images2.alphacoders.com/450/450858.jpghttp://www.extremetech.com/wp-content/uploads/2013/09/nanotube.article.jpghttp://www.extremetech.com/wp-content/uploads/2013/09/nanotube.article.jpghttp://2.bp.blogspot.com/-Uf3tOsnH3Wg/UjimG46DjbI/AAAAAAAACQs/RI7vbfwV598/s1600/Invisible-Woman-cynthia-selahblue-cynti19-31006742-1280-1024.jpghttps://lifeboat.com/images/invisibility.cloak.jpg
Ben Coxworth, “New Chemical Reagent turns biological tissue transparent”, Gizmag, 2 September 2011
Harty, M., Neff A., Developmental Dynamics, 2003, 226 (2), 268-279