Comments

ktperera

Technology

Fastest Supercomputer in the World Models Dark Matter, HIV Family Tree Simultaneously

By Stuart Fox Posted on 10.30.2009 20 Comments
In November of last year, scientists at Los Alamos National Laboratory switched on Roadrunner, the world's fastest computer. IBM and the Department of Energy built the machine to model nuclear explosions, but two new studies, both released today, are proof that the computer's massive power has been at least as devoted to peaceful science as to simulating thermonuclear weapons.

11.3.2009 at 10:28am - Comment by ktperera

How about using the DM density profile equation 25 at my site cosmic dark matter to simulate galaxy formation?
Technology

Fastest Supercomputer in the World Models Dark Matter, HIV Family Tree Simultaneously

By Stuart Fox Posted on 10.30.2009 20 Comments
In November of last year, scientists at Los Alamos National Laboratory switched on Roadrunner, the world's fastest computer. IBM and the Department of Energy built the machine to model nuclear explosions, but two new studies, both released today, are proof that the computer's massive power has been at least as devoted to peaceful science as to simulating thermonuclear weapons.

11.3.2009 at 09:51am - Comment by ktperera

Stuart, Lets do a DM simulation on this computer using my DM density profile given by equation 25 found at my web: http://cosmicdarkmatter.com/Newtonian_Dynamics.html and see how the galaxies develop and unfold in front of our eyes.
Science

Searching For Dark Matter In the World's Deepest Underground Lab

By John Brandon Posted on 6.25.2009 7 Comments
Scientists at Case Western Reserve University, Brown University, and several other collaborators are building an underground science lab where, in a 300-kilogram tank filled with liquid xenon, they hope to find dark matter -- the material that scientists believe was instrumental in helping to form the universe.

7.9.2009 at 05:15pm - Comment by ktperera

Where have all the matter gone? Long time passing Where have all the energy gone? Long time ago The answer my friends is flowing in the web See http://cosmicdarkmatter.com/ When will they ever learn? When will they everrrrr learn?
Technology

The State of the Universe

By Posted on 4.30.2008 6 Comments
Not much in science is more of a mind-bender than thinking about the size and fate of the known universe (except for quantum mechanics and string theory, which also has a lot to do with the size and fate of the universe, albeit on the opposite end of the size spectrum). When we first developed theories about the universe, the model which resulted depicted all of space as static and unchanging, infinite in depth in any direction. Then Einstein posited general relativity and suddenly a whole host of universes were theoretically possible: static, dynamic, infinite, and finite.

6.26.2008 at 10:47am - Comment by ktperera

Yes the universe will expand forever. See cosmicdarkmatter.com The expansion feeds on itself and therefore is exponential.
Science

Large Hadron Collider Probably Won't Destroy Earth

By Posted on 6.23.2008 10 Comments
The Large Hadron Collider, the giant particle accelerator that's scheduled to begin colliding protons in August, has the potential to produce the long-sought Higgs boson. That elusive particle is a missing link in the commonly accepted model of physics. Observing it would be an important milestone in our understanding of the fundamental forces of the universe.

6.23.2008 at 07:00pm - Comment by ktperera

No problem, belive me, the LHC cannot harm the planet. I hypothesize that black holes are not possible, based on my analysis of the origins of gravity and inertia, they have natural limitations. See cosmicdarkmatter.com
The Environment

You're Wrecking the Environment

By Posted on 6.24.2008 13 Comments
Everyday behavior, things that it's easy to take for granted, have a significant effect on the planet. Some habits are easy to change, but others are more deeply entrenched. And so, despite your good intentions, you're probably wrecking the environment as we speak. See the five ways you're ruining things (and how to turn them around) here.
And check out PopSci's complete coverage of the future of the environment at popsci.com/futurecity.

6.23.2008 at 06:22pm - Comment by ktperera

You are trying to educate people to lead a simple life, waste not wan't not, in order to help the environment. Which is great, but you are up against powerful media and business who are doing exactly the opposite, in order to promote their bottom line. This is the price mankind have to pay in their quest for progress and high life. Someone asked, can we clean up the waste without going back to the dark ages? Tissa Perera
Science

It May be Preposterous but it’s Still Science

By Posted on 3.18.2008 4 Comments
Is all this work on string theory and multiple dimensions and extra universes still science? Thats the question physicist Sean Carroll and writer John Horgan recently debated. Carroll, of the California Institute of Technology, also blogs regularly for Cosmic Variance, and he wrote out a detailed post explaining his position. Obviously, as a cosmologist who works full-time on these seemingly preposterous ideas, he is a bit biased. Hes not the guy youd expect to stop and say it isnt real science. But his piece on the subject does effectively explain why he and, one assumes, other theoretical physicists working on these problems think this way.

6.21.2008 at 11:16am - Comment by ktperera

Better late than never. Matter strings do exist and causes gravity. As a matter of fact my conclusions is that Quantum mechanics and gravity cannot be united. See a hint of my concept of the origins of matter and gravity and limitations of gravity and inertia at cosmicdarkmatter.com.
Science

It May be Preposterous but it’s Still Science

By Posted on 3.18.2008 4 Comments
Is all this work on string theory and multiple dimensions and extra universes still science? Thats the question physicist Sean Carroll and writer John Horgan recently debated. Carroll, of the California Institute of Technology, also blogs regularly for Cosmic Variance, and he wrote out a detailed post explaining his position. Obviously, as a cosmologist who works full-time on these seemingly preposterous ideas, he is a bit biased. Hes not the guy youd expect to stop and say it isnt real science. But his piece on the subject does effectively explain why he and, one assumes, other theoretical physicists working on these problems think this way.

6.21.2008 at 11:15am - Comment by ktperera

Better late than never. Matter strings do exist and causes gravity. As a matter of fact my conclusions is that Quantum mechanics and gravity cannot be united. See a hint of my concept of the origins of matter and gravity and limitations of gravity and inertia at cosmicdarkmatter.com.
Technology

The Search For Extraterrestrial Life: A Brief History

By Posted on 6.17.2008 22 Comments
For as long as humans have looked to the night sky to divine meaning and a place in the universe, we have let our minds wander to thoughts of distant worlds populated by beings unlike ourselves. The ancient Greeks were the first Western thinkers to consider formally the possibility of an infinite universe housing an infinite number of civilizations.

6.21.2008 at 10:41am - Comment by ktperera

jz.alter4u is correct that Einstein disliked black holes. As a matter of fact I am able to explain that gravity and inertia has limits. Look for a hint at cosmicdarkmatter.com No to infinities and singularities. K. Tissa Perera
Technology

Astronomers Discover Missing Mass

By Posted on 5.8.2008 3 Comments
Granted, it might not seem like such a big deal when astronomers find some of the missing mass in the universe, since there's very little that isn't missing. Roughly 95 percent of the cosmos is either dark matter or dark energy. About five percent of the universe is made up of the normal mass we're familiar with—baryonic matter. Yet by adding up the known stars and galaxies and gas, astronomers have only accounted for about half of that five percent.

6.4.2008 at 07:46am - Comment by ktperera

For a hint see my web site at cosmicdarkmatter.com /Tissa Perera