This is the second in a series of youtube video's I am making. Which I have chosen to name “Quantum Theory in Plain Language”.

In this particular video I give what I hope is a simple and accurate explanation of Dirac's Bra-Ket Algebra. First I introduce the concept of the ket and bra as representing quantum states. (Which in the first video are defined as consisting of information describing a physical system.) Then I define what in the video I call a “ket space”. I make use of the average persons intuition from high school algebra or geometry. In particular the concept of the 2D (x,y) plain. Where the inner product <bra|ket> on the space is the simple dot product.

 

Well I know that not everyone's computer can do Youtube (especially if it is older or uses a less common OS). So Here I write the gist of what I said.

World Autism Awareness day was April 2^nd 2008 as designated by the United Nations. Which was a good thing. However I think that a condition that effects 1/150 people on Earth needs a week or a month. Autistic people are neurologically different from the typical, average person. This varies form from being a handicap to a mild benefit in certain situations.

I have just completed the first in a series of youtube video's on quantum theory. This one deal with quantum states. In these video's I attempt to explain quantum mechanics in a way that anyone who has graduated high school could understand. The maths will never be more complicated than geometry and algebra and the language will be kept simple. However even with that I think that a basic apprectiation for quantum theory (not just certain sexy phenomena) can be attained. If anyof you see any glaring errors please feel free to chime in a correct me here on on you tube.

To day I have posted my innagural you tube video. It is the introduction to my little channel where I will produce and post some videos where I explain Quantum Mechanics to people in a simple and understandable way. At least I hope it will be understandable. This is just an introduction to me. I will cover the topics of kets, bra's, ket spaces, Hilbert spaces, operators on hilbert spaces, measurement, and Finally present the axioms of quantum mechanics.

This essay is all about how society perceives scientist. From many different perspectives. I ask and try to answer the question. Why does science hold interest for so few people?

 

Do a quick google search of the terms stereotypes of scientist. What you will find is many links about various studies. They speak of the pictures that children draw when they think of a scientist. Consider the following: [1]

Quantum gravity can be understood by considering the logical consqquences of a single unifying postulate or principle of nature. I call it the postulate of quantized space time. First some observations. The Gravitational force seems to pervade the entire universe. However gravity is the weakest of all the forces in the entire universe. To get a easily measurable force of gravity there needs to be a planetary or larger mass nearby. So any theory of quantum gravity must require a large amount of mass to create a small effect in space time. Gravity also seems to be an exclusively attractive force. It also has only monopole and quadrupole moments. The lowest radiative gravitational moment is the quadrupole moment.