This afternoon i was at the cinema to catch the Dark Knight (after being recommended to me by my students).
I must say that this is the best action superhero film I have seen this year. Not only it has lots of exciting battle scenes, special mention must be given to the late Heath Ledger, whose acting role in the movie as the psychopath Joker, which I feel, has far surpassed batman. Not only has he showed us how a psychopath acts, every area of how a psychopath thinks and feels, he has carried it out very well. Hmm. This is not a website to review movies, so i would just say that this is one of the greatest movie this year, and it combines good cinematography, writings, plots, actions, sound effects and excellent actings. The movie shows love, humanity, good over evil & power of psychology.
Now, do you all still remember the part where batman ask his company officer to make him a new batman suit? (after he was attacked by dogs). The new suit as you can see below in the picture is made of Titanium & Kevlar, as mentioned in the movie.
Let’s see how chemistry comes into play in DARK KNIGHT…
Titanium:
Atomic Number: 22, Atomic Weight: 48, Period Number: 4, Transition Element Block
Titanium is a strong, light metal. It is as strong as steel and twice as strong as aluminum, but is 45% lighter than steel and only 60% heavier than aluminum. Titanium is not easily corroded by sea water and is used in propeller shafts, rigging and other parts of boats that are exposed to sea water. Titanium and titanium alloys are used in airplanes, missiles and rockets where strength, low weight and resistance to high temperatures are important. Since titanium does not react within the human body, it is used to create artificial hips, pins for setting bones and for other biological implants. Unfortunately, the high cost of titanium has limited its widespread use.
Kevlar:
Kevlar is the registered trademark for a light, strong para-aramid synthetic fiber. Typically it is spun into ropes or fabric sheets that can be used as such or as an ingredient in composite material components. Kevlar has many applications, ranging from bicycle tires and racing sails to body armor such as bulletproof vests and facemask, because of its high strength-to-weight ratio?famously: “…5 times stronger than steel on an equal weight basis..”. Polymer Kevlar has very good resistance to high temperatures, and maintains its strength and resilience down to cryogenic temperatures (-196?C); indeed, it is slightly stronger at low temperatures.