Thursday, August 23, 2012

Avenging Science

So, I'm sure many of you have seen the avengers. It was a fun movie, but like all superhero movies, it's not a place that you would expect to go for scientific accuracy. And you would be correct. The main thing that caught my eye, since it couldn't be explained away using either Magic or Tony Stark(see magic) was the giant flying aircraft carrier. This guy here:
That is not a particularly practical looking piece of flying equipment, and I can pretty much guarantee it's only use to is make Samuel L. Jackson look even more badass. The question though is not should you use a giant awesome flying aircraft carrier, of course you should, but is the one depicted physically possible. The first thing we need to look at is the force required to keep that in the air. As you can see in the image, the carrier has 4 ducted turbofans. I have tentatively estimated that the average speed of the air going through the fans it ~.3 times the speed of sound at sea level, or 100 meters per second. Since the mass of the carrier must be assumed to be on the order of the mass of the USS enterprise
(I'll assume 50000 tons for our purposes), we can figure out what surface area of fan is required to move that much air. The force needed to keep a 50000 ton aircraft carrier aloft is about 4.5*10^8 newtons. Now, we have to compare that to the force actually able to be produced by the ducted fans. At the speed discussed, they would produce about 6.4*10^3 newtons of force per square meter, that means you need 69740 or so square meters of area to get your lift. Or 17435 m^2 per fan. Which comes out to a radius of 75 Meters. Unfortunately, as we can see from the image, the radius of those fans is closer to 15 meters, so how fast would the air have to be moving? The answer is something like 1200 meters per second, which is significantly faster than the speed of sound. And sadly impossible. Unfortunate that we have found that this isn't really possible, but let's assume that they can generate the speed needed, how much power is required? That's relatively easy, since we know how much air we are moving at what speed. Assuming we use the larger turbines, that means moving 69740 cubic meters of air at 100 m/s. Since the energy of the air moving past the turbine in 1 second is 1/2 m*v^2, the power required would be about 1 gigawatt, or 5 times the output of the Enterprise. This is actually not terribly impossible, but if you instead assume that they are using the turbines shown, the energy goes up to an impossible 12 gigawatts. Which is unavailable to any craft of that size today. Once again a movie has shown us the impossible. But then again, it did manage to make Samuel L. Jackson look cool using a bluetooth headset, so I suppose we will have to forgive the director.


  1. For all you big spenders out there, there are 4 more colorways of the adidas x Rick Owens Mastodon collection to choose from. For those not very familiar with the Mastodon model, it’s essentially a much more expensive version yeezy boost 350 of the Pro Model. Above you will find tonal iterations of the shoe consisting of Navy, Burgundy, White and Grey. The innovative Rick Owens design is easily seen on this adidas creation. Some of the adidas nmd pairs are made out of a premium leather with embossed texture, while others are constructed using soft nappa leather to give the shoe is premium motif. In addition, you will find a cupsole and shell toe in an off-White hue to complete the look of the shoe. Available now at select adidas originals premium stockists, pick up these new colorways for prices ranging from $1,000 and $1,060.
    How’d you do on the adidas Confirmed app today? Were you able to reserve your NMD X Yeezy 350 Boost infant adidas Yeezy Boost 350 or did you take an L like the majority of us? Id you did then you still have a couple of opportunities at getting Yeezy Boost 350 Moonrock your hands on a pair such as the release on Saturday morning.In case you wanted to get a better look at the kicks here are some detailed images Adidas Outlet of the adidas Yeezy Boost 350 Infant in the Turtle Dove colorway. The sneaker comes with a grey and black Primeknit upper along with a white midsole that comes adidas outlet equipped with adidas’ Boost technology. The adidas Yeezy Boost 350 Infant Turtle Dove will release on August 27th for a retail price of $130. Good luck getting your hands Adidas NMD Human Race on a pair.Be sure to visit our adidas Yeezy Boost 350 Infant hub page for all the latest images and info regarding this upcoming release.
    Official images of the adidas shoes updated adidas Ultra Boost Triple White 3.0 version have now released,

  2. It's hard not to wonder if Dolce & Gabbana did a little bit of reading up on their classic fairy tales before starting to work on Fall 2014. The collection was full jimmy choo outlet of the regulars you come to expect in the tales, from blooming roses and enchanted keys to friendly forest creatures and even literal red hoods. red bottoms shoes Heck, the set even featured a gloomy ancient tree that looked like it was transported straight from an enchanted forest. Cutesy stuff aside, there were giuseppe shoes sexy off-the-shoulder gowns cinched by corsets that we can imagine Katy Perry (or a damsel in distress) slipping into. The house's love for luxury wasn't red sole shoes christian louboutin muted, either, with beaded dresses and coats fit for the royals so commonly met valentino boots in classic fables. And the modern working woman? She'll be happy, too, with tailored pants, jackets, and dresses that'd work better in the corporate world than the castle. Scroll through for all that and the jewel-encrusted finale army that we've come to expect from the designing red bottoms shoes

  3. d and Secured Service Provider. Get Free ###Packers and Movers J


  4. fied and Secured Service Provider. Get Free ###Packers and Movers Jaipur Price Quotation instantly and Save Cost and Time. Pa

  5. 메이저놀이터
    Service Provider. Get Free ###Packers and Movers Jaipur Price Qu

  6. According to Council Regulation No. 1030/2002, residence permits in the European Union have a uniform format, which means that the residence permit has the same form in all member states - it can be a sticker or a separate document containing certain information.

  7. replica bags bangkok gucci replica handbags f6d37v0i24 replica zara bags replica bags wholesale india Bonuses r6p37f6v98 replica bags 168 mall replica bags replica hermes bag m0q36o1o52 replica bags review