Follow Us on Facebook, Twitter, and YouTube

Skeptic: Examining Extraordinary Claims and Promoting Science

top navigation:

Share this page with friends online.
Click the + for more sharing options.

Past Lectures at Caltech

Black Holes Sing: Black Holes, Their Orbits & Gravitational Waves

Dr. Janna Levin

Black Holes are the ultimate death state of very massive stars. Collapsing under their own weight, the dead cores will curve spacetime so strongly that not even light can escape. Black holes emit no light and reflect no light. They are dark against a dark sky and effectively invisible. When two black holes move in orbit around each other, they churn up the spacetime around them, emanating waves in the fabric of space itself. These waves are like the waves on a drum and are closest in analogy to sound waves: the black holes are singing. Gravitational waves move through the universe, and us, all the time squeezing and stretching space but so weakly that we don’t notice. Monumental experiments built on Earth and planned for space aim to record the extraordinary sounds of black hole orbits.

This lecture by the theoretical physicist, Dr. Janna Levin (Barnard College of Columbia University) combines her work from her first book, How the Universe Got its Spots (a nonfiction work of science) with her second book, A Madman Dreams of Turing Machines (a novel that won the prestigious PEN/Bingham Fellowship Prize for Writers and the MEA Mary Shelley Award for Outstanding Fictional Work).

Book signing to follow the lecture.

get eSkeptic
our free newsletter

Science in your inbox every Wednesday!


eSkeptic is our free email newsletter. Delivered once a week, you’ll receive fascinating articles, announcements, podcasts, book reviews, and more…

Watch Live Broadcasts from Caltech for free!

Lectures Live Streamed from Caltech

Can’t make it to Caltech for a Skeptics Distinguished Science Lecture? Watch the live stream of our lectures for free online, right here, broadcast live from Caltech!

Popular Articles
on skeptic.com

Here are the articles that people have been sharing over the last few days.

Help the
Skeptics Society
at no cost to you!

Planning on shopping at Amazon.com? Start your shopping by clicking the button below, and the Skeptics Society will receive a commission. Your prices for all Amazon products will remain exactly the same, yet you’ll provide essential financial support for the work of the nonprofit Skeptics Society.

amazon.com

See our affiliate links page for Amazon.ca, Amazon.co.uk, Amazon.de, and iTunes links.

Tweets from Shermer

The Believing Brain
(now in paperback)

The Believing Brain (paperback cover)

Get the autographed paperback

In this, his magnum opus, Dr. Michael Shermer presents his comprehensive theory on how beliefs are born, formed, nourished, reinforced, challenged, changed, and extinguished. Sam Harris calls The Believing Brain “a wonderfully lucid, accessible, and wide-ranging account of the boundary between justified and unjustified belief.” Leonard Mlodinow calls it “a tour de force integrating neuroscience and the social sciences.”

FREE PDF Download

Top 10 Myths About Evolution

Top 10 Myths About Evolution (and how we know it really happened)

This concise pamphlet provides answers to common objections to evolution, such as: If humans came from apes, why aren’t apes evolving into humans?; Only an intelligent designer could have made something as complex as an eye; The second law of thermo-dynamics proves that evolution is impossible; Evolution can’t account for morality; and more…

FREE PDF Download

Top 10 Things You Should Know About Alternative Medicine

Top 10 Things You Should Know About Alternative Medicine

Harriet Hall, MD (aka the SkepDoc), shares her wit and wisdom about alternative medicine including: chiropractic, the placebo effect, homeopathy, acupuncture, and the questionable benefits of organic food, detoxification, and ‘natural’ remedies.

FREE PDF Download

Learn to be a Psychic in 10 Easy Lessons

Learn to be a Psychic in 10
Easy Lessons

Psychic readings and fortunetelling are an ancient art — a combination of acting and psychological manipulation. While some psychics are known to cheat and acquire information ahead of time, these ten tips focus on what is known as “cold reading” — reading someone “cold” without any prior knowledge about them.

Copyright © 1992–2013 Skeptic and its contributors. For general enquiries regarding the Skeptics Society or Skeptic magazine, email skepticssociety@skeptic.com or call 1-626-794-3119. Website-related matters: webmaster@skeptic.com. Enquiries about online store orders: orders@skeptic.com. To update your subscription address: subscriptions@skeptic.com.
See our Contact Information page for more details. This website uses Google Analytics, Google AdWords, and AddThis tracking software.