Semana 8 - 24/02/12

Dilatación Cúbica o Volumétrica

Ted.com
"Cirugía de Ultrasonido; curando sin cisienes

• http://www.ted.com/talks/yoav_medan_ultrasound_surgery_healing_without_cuts.html
• Because I am interested in studying medicine this speech was fascinating for me. Dr. Yoav Medan talks about how with new technology and sheer scientific brilliance doctors can apply ultrasonic waves to eliminate a specific pain, tumor and possibly cancer without having to do any type of invasive surgery. This idea has been looked over and dreamed of since the 1920s. Although it hasn't been until the invention of the MRI for this procedure to be realistic. The procedure includes focusing ultrasonic waves in the specific spot, then with a burst of energy the pain/disability is eliminated. It has been tested on many in the last year and has proven to be remarkably successful. Who knows,  invasive surgery might become a procedure of the past.
• Focus ultrasonic treatment is also intensively being looked at for curing cancer

Semana 7 - 17/02/12

Termologia

• Ecuación de los fenomenos témicos
• Q=mCe (cambio posición)T
• T=T(final)-T(initial)
• Temperatura -> termómetro
• En 3 escolas de temperaturas
• ºC 
• ºF
• ºK

Dilatación Térmica -> Son 3 casos;

1. Dilatación lineal
• ecuación;


• longitud>> Auncho y alto
2. Dilatación superficial
• ecuación

3. Dilatación cúbica o volumétrica
• ecuación;



• Longitud (mas o menos) = Ancho (mas o menos) =Alto

Ted Talk

"How your brain tells you where you are"

• http://www.ted.com/talks/neil_burgess_how_your_brain_tells_you_where_you_are.html
• This talk interested me because I am one to easily forget things, so knowing how the brain remembers where we are and how to do specific functions is fascinating for me. In the talk it is explained that memory of how you remember simple things is primarily from a small portion of the brain called the "hippocampus". Within these specific parts of the brain neurons continuously fire in order to remind our selfs where we are and what we are doing. Different parts of the brain preform different functions of memory, for example orientation, specific events and so on.

Semana 6 - 10/02/12

Ted.com 

Erik Johansson: Impossible Photography

Texto:Erik Johansson creates realistic photos of impossible scenes -- capturing ideas, not moments. In this witty how-to, the Photoshop wizard describes the principles he uses to make these fantastical scenarios come to life, while keeping them visually plausible.

• http://www.ted.com/talks/erik_johansson_impossible_photography.html
• I found this very interesting and complex for the simple topic of photography. Johansson feels the idea of capturing a photograph ends so abruptly and that is that - the photo is taken. Therefore, Johansson puts in (some of the times) months of planning a photography session to perfect his method of combining photos to create mind bending results. In my perspective his photography is complex for the brain to pick up at first glance although, it is very realistic once examined. 
• Here is one of his carefully plotted images which is two photographs combined

Semana 5 - 3/02/12

Termodinámica

• Temperatura - La magnitud física nos indica que tan caliente o fría una sustancia.
• Kº -> Cº, Fº
• Calor - una energía en transita que fluye de cuerpos - a mayor temperatura - peratura a los de menor temperatura.
• Ecuación de energía= E(total)=Ek(1/2mv(squared))+Ep (mgh)+ change in Eq

Termómetro

• Hay tres diferente medidas de temperatura vees frecuencia:
• Kelvin (ºk)
• Celsius (ºc)
• Fahrenheit (ºf)
• Estos medidas tienen diferente numeros para el mismo temperatura.
• 0ºc=237ºk=32ºf
• 100ºc=373ºk=212ºf
• -273ºc=oºk=-459.4ºf
• Las conversións son deferente para ºf, por ejemplo:
• 1ºc=1ºk=1.8ºf

Las ecuaciones/convertir

• para convertir ºc->ºk
• ºk=ºc+273
• para convertir ºk->ºc
• ºc=ºk-273
• para convertir ºc->ºf
• ºf=1.8ºc+32
• para convertir ºf->ºc
• ºc=ºf-32÷1.8

Ted.com - "Murray Gell-Mann sobre la belleza y la verdad en la física"

http://www.ted.com/talks/lang/en/murray_gell_mann_on_beauty_and_truth_in_physics.html

Texto:Armado de sentido del humor y términos para el público en general, el ganador del premio Nobel Murray Gell-Mann brinda a los seguidores de TED conocimientos sobre física de partículas, mediante preguntas como: ¿Las ecuaciones elegantes tienen más probabilidad de ser correctas que las no elegantes?

Opinion y respuesta: I thought his speech was thoroughly interesting. Relating the effect that beauty has on physics is genius. He explained how in fundamental physics beauty can effect experimental results. Which then questions,what is beauty, and how can it effect us this way? If one looks into the fundamental laws a way to represent its density is by the onion model. Each layer leads to the next layer, with each layer seeming similar to the last one. The equations within this fundamental onion are of simplicity and are viewed as very symmetrical. Because of the simplicity and symmetry the fundamental laws reflect beauty itself. Ending with a wise statment of "we shouldn't need anything more to explain more (beauty).