Lawrence Krauss sat down to record On Being with Krista Tippett at Chautauqua Institution in July 2012. I wrote this post after attending. I am glad to have found the entire interview and Q&A session available to watch on you tube. I'm curious to hear your thoughts. I realize the video is long but it is certainly worth the time.
Showing posts with label Cosmology. Show all posts
Showing posts with label Cosmology. Show all posts
Sunday, August 12, 2012
Sunday, August 5, 2012
7 minutes of terror happening NOW!
The Curiosity Mars rover will land tonight at 1:30 AM Eastern Time. Watch this primer to get pumped!
Wednesday, July 18, 2012
Lawrence Krauss - words of wisdom
"Too often in the media, speculative ideas are treated on the same footing as well-tested ones. As a result, it is sometimes hard to tell the difference between them. This is particularly unfortunate when firmly grounded ideas that are known to accurately describe the physical world (such as evolution and the big bang) are passed off as mere theoretical whims of a group of partisan scientists. One of the most useful tasks a popular exposition of science at the forefront can achieve, it seems to me, is clearly differentiate that which we know yields an accurate description of nature on some scale from those things we have reason to suspect one day might do so. And the worst thing such an exposition can do is confuse the two."
~Lawrence M. Krauss
from Hiding in the Mirror
I had the good fortune of meeting Lawrence Krauss last Friday as he recorded the radio show "On Being" with Krista Tippett at Chautauqua Institution here in Western New York. He was happy and irascible in front of a large crowd of religious people in the open-air "Hall of Philosophy."
Throughout his interview he drove home his point over and over that God and science do not mix, that science is the best method for learning and religion is a collection of childish myths and we all need to grow up. The gasps from the crowd were priceless.
Krauss took the opportunity to explain how the discovery of the Higgs boson affects our understanding of the universe. A subtle point not covered by many popular outlets is that the Higgs field barely interects with photons. This accident of our existence explains how photons can travel at the speed of light while the rest of matter is slowed by the strong nuclear force and the newly verified Higgs field.
While speaking of the Higgs Krauss urged the audience to embrace the ecstatic awe discoveries like these can provide without the need for faith. He stressed the satisfaction that comes from a secular humanist view of the universe.
Krauss pointed out that faith leaves humanity helpless in making policy decisions. He proposed policy be decided based on evidence. A strangely novel suggestion in the current political atmosphere. He said it bothered him greatly that McCain and Obama choose to have a presidential debate on faith rather than issues that actually matter like approaches to human health and disease, energy, and the environment. What did we learn from the faith debate in 2008? That both candidates had it. So what?!?!
When you do not base you moral and ethical decisions on evidence you end up with the republican party!
One of the best moments of the day was when an elderly woman asked Dr. Krauss "what can science tell us about love?" He responded with a wonderfully humanist answer I will paraphrase from memory.
Science can tell us a lot about love starting with chemistry and physiology. From a scientific world-view a person can approach love honestly. I can tell you that I am deeply in love right now. When I feel love I am seeing and sensing shared values in another human being. Of course I am sexually attracted to the person but on a deeper level I see myself in her. I see the ideals, the things I aspire to most in her. That reflection can easily come from a scientific approach to love.
After the interview I picked up a copy of his book Hiding in the Mirror and was pleased to see him described as a "writer-scientist" on the back cover. From now on I aspire to be a "writer-scientist" myself. Too often I think people who go from doing science to writing about science feel the need to re-label themselves "science-writers." I see no need for this re-branding. We are all scientists!
Though I did want to ask him many different questions I choose the one most important to me. I asked him if he supports Open Access. He replied with gusto.
"Yes, of course. In fact astrophysics pioneered open access with the invention of the ArXiv. I see journal articles as for archival purposes. I don't even read journals anymore, just the ArXiv."
As a biochemist I had not heard of this resource and was happy to look it up and experience it first hand. With this awareness fresh in my mind I was shocked to see the ArXiv all over science news this week. A law newly passed in the UK requires all research publications made possible with tax-payer funds be made openly available to the whole world online. The astrophysics ArXiv was used as an archetype for how to make this happen. Brilliant!
While I do look forward to a world with wider and wider open access I approach this world with Lawrence Krauss and his words of caution in mind. Carl Sagan had something to say about this as well.
"We wish to find the truth, no matter where it lies. But to find the truth we need imagination and skepticism both. We will not be afraid to speculate, but we will be careful to distinguish speculation from fact.
For our collective understanding of the universe to mature we need to have a lot of ideas. This means there will be countless bad ideas. The trick, I think, will be not to get caught in an eddy in the river of knowledge. Dogma, fear, and superstition have proved themselves sure paths into those stagnant waters.
I applaud Lawrence Krauss for encouraging us to grow up.
Wednesday, July 4, 2012
Why Higgs matters? Lawrence Krauss explains
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| Image courtesy of CERN. |
By Lawrence Krauss - Slate
Who would have believed it? Every now and then theoretical
speculation anticipates experimental observation in physics. It doesn’t
happen often, in spite of the romantic notion of theorists sitting in
their rooms alone at night thinking great thoughts. Nature usually
surprises us. But today, two separate experiments at the Large Hadron
Collider of the European Center for Nuclear Research (CERN) in Geneva
reported convincing evidence for the long sought-after “Higgs” particle,
first proposed to exist almost 50 years ago and at the heart of the “standard model”
of elementary particle physics—the theoretical formalism that describes
three of the four known forces in nature, and which to date agrees with
every experimental observation done to date.
The LHC is the most complex (and largest) machine that humans have
ever built, requiring thousands of physicists from dozens of countries,
working full time for a decade to build and operate. And even with 26
kilometers of tunnel, accelerating two streams of protons in opposite
directions at more than 99.9999 percent the speed of light and smashing
them together in spectacular collisions billions of times each second,
producing hundreds of particles in each collision; two detectors the
size of office buildings to measure the particles; and a bank of more
than 3,000 computers analyzing the events in real time in order to
search for something interesting, the Higgs particle itself never
directly appears.
Labels:
CERN,
Cosmology,
Higgs,
Higgs Boson,
Lawrence Krauss,
physics,
Science,
Standard Model,
The God Particle
Monday, July 2, 2012
What is the Higgs field?
Could it be that Healthcare in the United States is approved AND the Higgs boson is discovered in the same week? Maybe.
I am watching with great anticipation this week as my favorite physicists tweet their way all the way to Switzerland for a big announcement from CERN at the Large Hadron Collider.
Sean Carrol, physicist and blogger just tweeted he was boarding a plane bound for CERN and several prominent physicists notorious for not keeping their mouth's shut have been bursting at the seems awaiting the announcement expected this Wednesday July 4th.
UPDATE: Peter Higgs, the theoretical physicist who originally imagined his namesake particle is also en route to CERN!
UPDATE: Peter Higgs, the theoretical physicist who originally imagined his namesake particle is also en route to CERN!
All this indicates some new data about the Higgs boson has been collected and is ready for public display.
If you are unfamiliar with this particle it is at the crux of all matter in the universe - hypothetically.
The following video is the least woo-woo explanation I can find out there describing what the Higgs field may be. High praise to the creators for not mentioning the "God Particle" once. Tough to resist the trendy pop-culture label.
Thursday, June 21, 2012
The Scale of the Universe 2.0
A new and improved version by Cary and Michael Huang. Brilliant!
If you would like to control the scale yourself click here
If you would like to control the scale yourself click here
Labels:
Carl Sagan,
Cary Huang,
Cosmology,
Cosmos,
Michael Huang,
Science,
Science Education
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