Showing posts with label Einstein. Show all posts
Showing posts with label Einstein. Show all posts

Saturday, September 29, 2007

Mystery Space Burst Found by Young Undergrad

Chalk another one up for the determined youth that once again does not take their elder scientists' words as gospel truth or settled facts. Out in deep space about 1.5 billion light years away, a catastrophic event happened causing a massive amount of energy to affect listening equipment. At the time of the event, with researchers stating adamantly it was man made. This pat explanation did not sit well with an enterprising undergrad wannabe astrophysicist who went on a quixotic quest to study the data from the Small Magellianic Cloud.

David Narkevik, an undergraduate at West Virginia University, was re-analysing data from the Parkes telescope in Australia when he came across a five-millisecond burst of energy so powerful that it "saturated" the equipment. Researchers had previously dismissed it as a man-made phenomenon, an accident to be ignored, according to Australia's Commonwealth Scientific and Industrial Research Organization (CSIRO).
Surely something in outer space will get named after this kid that just set the astrophysics world on its ear. This could very well be the first recorded instance of mega stars colliding, a black hole collapsing or some as yet to unimagined cosmic event. Astronomers are studying the telescopes data which is 5 milliseconds long. It won't be iPod worthy or a contestant on name that sound. But it is fascinating to know something changed out in deep space and was heard on earth, albeit six years later after rediscovering the radio burst tape.

Lorimer cautioned that it's impossible to say for certain what the radio burst might indicate at this point, as it is the only one that has been detected so far.

"We're keeping very open minds about this thing," Lorimer said, adding that their uncertainty stems from the inability to pinpoint it to a galaxy or other celestial object that could reveal some clues to its identity. "We're putting a lot of effort into poring through other radio data to find more of these things."

So far, the search has left the researchers empty-handed, but it may be an issue of sensitivity. Lorimer emphasized that the records are several years old and few radio observatories have the sensitivity to detect such short bursts.

"Based on the area we looked at, we think this type of burst may occur at a rate of a couple hundred each day," Lorimer said. He thinks that whole-sky surveys using next-generation radio observatories would be needed to detect most of them.

That is a stunner because the early betting is they might be able to understand more about the mystery of gravity. Imagine that you are a young student and physics took a major leap forward in comprehension as you were digging around listening to radio tape. Totally Awesome.




James B. Hartle gives an elegant explanation of the modern essence of physics in his tome, Gravity: An Introduction to Einstein's Relativity. It took Einstein a decade and a half to come up with the theory explained here in a beautifully postulated book that costs what the theory is worth.

Thursday, August 2, 2007

August 2, 1939 A Historic Day

Two events on that specific date make it possible for you to read this. Neither, in my mind, is more important than the other.

Albert Einstein wrote a letter to President Franklin Delano Roosevelt, catapulting America into action warding off stockpiling of uranium by enemies of the state. Uranium was and is critical to the making of a nuclear device, especially a bomb. Albert Einstein, at the behest of other scientists and scholars made it clear that uranium was the active ingredient to set off a chain reaction. They were using the fabled formula E=mc2.

Einstein writing that letter is credited with pushing the USA to work speedily via the Manhattan Project to beat the Germans and others working on an Atom Bomb in secret. Einstein came to regret that letter, not because of America's actions, but because it set off the arms race of the nuclear age. He was a committed pacifist, suspected by his adopted country; America, and wanted no parts on working on weapons of mass destruction.

The second event that happened that day was the birth of my mom. It is her birthday. I wish her much love, peace and happiness in the years ahead. She works hard, gives of herself and makes life better for others in all the great ways she knows how. I am glad she is my Mom. I love her very much and thank her for all of her sacrifices and things she has done in a life well lived. Happiest of Birthdays, Beloved Mom!

There are no books about my Mom, but there should be. To me, both are fascinating people. Mom's hair is white, but under control. Einstein, ever the gracious definition of a totally warped space time continuum bad hair day.

There are books on Albert on the wide range of his life and his interests. Einstein is captured in a lively biography dedicated to his years in Berlin by Thomas Levenson entitled, Einstein in Berlin. Denis Brian offers a lifetime review with Einstein: A Life.