Apr 29, 2008

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Ornate Pi tattoo : Tuesday Tattoo

ornate Pi tattoo

Since Pi is not in color, I presume Pi tattoo came earlier and then it was surrounded by the ornate orchids lilies.

Source Talk Like a Physicist

Apr 29, 2008

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Tuesday Physics tattoo : Transistor

physics_tattoo

Tattooee’s note:

I spent four years studying electrical engineering, and I didn’t drop out to some easier subject like some other students. I graduated with a BSEE… not that you can call me a doctor, but it’s still a small accomplishment. Because of this small accomplishment, I got my tattoo. To me, the transistor revolutionized the world due to faster and smaller computers and anything else that can benefit from them. It also has to do with the fact that transistors are in just about everything.

The design is from the IEEE schematic symbol for a transistor. My feelings for the tattoo vary, but for the most part, I don’t regret it. It has had no negative impact on my professional life and can be covered by my watch when I need it to be.

Talk Like a Physicist

Apr 28, 2008

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Stable Superheavy element Ubb with Z=122 and A=292 found in nature – Unbibium

Looks like we got a package from the island of nuclear stability!

I am surprised by this claim of finding super-duper-heavy element with Z=122 or Z=124. The last I heard was that the element Z=118 didn’t exist in nature, but was manufactured, and it had a very short life. The new element with Z=122 or Z=124 is apparently stable and is found in nature!

It’s like you go past the island of stability and find a mountain of solidity.

It sort of makes intuitive sense. When there are so many nuclei, and then when you have neutron deficit on top of it, it is likely that the nucleus would not be a sphere but of some other deformed shape; which in turn would make the shell take on a deformed shape. So, itt may be a highly deformed, long lived isometric state of Z=122, because the ground state of an element with Z=122 is expected to decay within microseconds.

The temporary name of the element will presumably be Unbibbium (Ubb) or Unbiquadium (Ubq).

Image

Evidence for a long-lived superheavy nucleus with atomic mass number A=292 and atomic number Z=~122 in natural Th
Authors: A. Marinov, I. Rodushkin, D. Kolb, A. Pape, Y. Kashiv, R. Brandt, R.V. Gentry, H.W. Miller

Evidence of superheavy element -

Talk Like a Physicist

Apr 24, 2008

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Breathtaking images of colliding galaxies from Hubble

colliding_galaxies

 

colliding galaxy

Here are a few of my favorite ones:

colliding galaxies

highly symmetric spiral galaxy seen nearly face-on and partially backlit by a background galaxy. The foreground spiral galaxy has a number of dust lanes between its arms.

Image

This Hubble image displays a beautiful pair of interacting spiral galaxies with swirling arms. The smaller of the two, dubbed LEDA 62867 and positioned to the left of the frame, seems to be safe for now, but will probably be swallowed by the larger spiral galaxy, NGC 6786 (to the right) eventually. There is already some disturbance visible in both components.

colliding_galaxies

This is a remarkable collision between two spiral galaxies, NGC 6050 and IC 1179, and is part of the Hercules Galaxy Cluster. The two spiral galaxies are linked by their swirling arms.

colliding_galaxies

Arp 256 is a stunning system of two spiral galaxies in an early stage of merging. The Hubble image displays two galaxies with strongly disrupted shapes and an astonishing number of blue knots of star formation that look like exploding fireworks.

The galaxy to the left has two extended ribbon-like tails of gas, dust and stars. The system is a luminous infrared system radiating more than a hundred billion times the luminosity of our Sun.

colliding_galaxies

Two clear signatures of the gravitational tug of war between the galaxies are the bridge of material that connects them and the disruption of their main bodies. The galaxy on the right has a long, bluish arm while its companion has a shorter, redder arm.

This interacting pair is in the constellation of Indus, the Indian, some 550 million light-years away from Earth. The dust lanes between the two galaxy centers show the extent of the distortion to the originally flat disks that have been pulled into three-dimensional shapes.

Source

Talk Like a Physicist

Apr 22, 2008

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Must see : Fourier transform tattoo

Is this for real or is this photoshop?

Image

There is a detailed explanation of the tattoo, which describes the physics behind the Fourier Transforms rather well.

Anyway, the tattoo shows the Fourier transform, one of the most extraordinary accomplishments in mathematics. It is due to Jean Baptiste Joseph Fourier, 1768-1830. I won’t put his picture here because he’s butt ugly. Anyway JB realized that in a way, a different universe lives beside us. We are accustomed to x, y, z and t. x is horizontal, y is vertical, z is near-far, and t is time. Everything we can feel and intuit is expressed in these terms. But entangled in this Cartesian universe is another one, a jiggly world of images and sounds and signals and waves.

Anyway, sound is a frequency-domain phenomenon. You can’t understand it in the space-time domain. Some things are strictly space-time, and other things can be seen either way. You might be amazed at how useful it is to look at the visual world in the frequency domain. In fact, that’s how our brain does it. Everything passes through a kind of Fourier transform before the higher visual processing centers do anything with it. Visual computation, for the most part, follows frequency analysis. You have to admit–The Foomeister was definitely the man.

Source David Bradley’s blog  (seems to be down for now)

There is a joke floating around that you know you are a real physicist, when you go to the beach and see the waves, and the first thing that comes to your mind is the Fourier Transforms! Talk Like a Physicist