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David Goggins
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Bryan Cranston
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International Poker Champion
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Amaryllis Fox
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Chris Hadfield
Retired Canadian Astronaut & Author
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What Is Dark Matter?

Michio Kaku: Well there is a theory, David, about what dark matter is.  You talk about different universes and let’s say that our universe is a sheet of paper.  We live our entire life on this sheet of paper, but directly above us there could be a parallel universe, hovering right over us, perhaps inches, centimeters away and objects in this parallel universe would be invisible.  Light travels beneath the universe, so we never see this other galaxy. But gravity, gravity goes between universes because gravity is nothing but the bending of space, so if the space between two sheets of paper is bent slightly gravity then moves across.

So think about it.  This other galaxy in another universe would be invisible, yet it would have mass.  That’s exactly what dark matter is.  Dark matter is massive—it has gravity—but it’s invisible.  It has no interactions with light or the electromagnetic force, so there is a theory that says that perhaps dark matter is nothing but matter, ordinary matter in another dimension hovering right above us.  We should also point out, however, that there are other theories too.  Dark matter is the cutting edge of science.  Some people think that maybe it is a higher vibration of the string.  All the atoms of our body represent the lowest octave of a tiny rubber band vibrating all over our body, and the rubber band could have a higher octave.  That next octave could be dark matter. So that’s yet another explanation for what dark matter might be.

So the bottom line is this.  There is a shelf full of Nobel Prizes waiting for you, waiting for anyone who can come up with a convincing and experimentally verified explanation of the origin of dark matter.

The answer to this question is at the cutting edge of science, but one theory states that dark matter is nothing but ordinary matter in another dimension hovering right above us.

Remote learning vs. online instruction: How COVID-19 woke America up to the difference

Educators and administrators must build new supports for faculty and student success in a world where the classroom might become virtual in the blink of an eye.

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Sponsored by Charles Koch Foundation
  • If you or someone you know is attending school remotely, you are more than likely learning through emergency remote instruction, which is not the same as online learning, write Rich DeMillo and Steve Harmon.
  • Education institutions must properly define and understand the difference between a course that is designed from inception to be taught in an online format and a course that has been rapidly converted to be offered to remote students.
  • In a future involving more online instruction than any of us ever imagined, it will be crucial to meticulously design factors like learner navigation, interactive recordings, feedback loops, exams and office hours in order to maximize learning potential within the virtual environment.
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Has science made religion useless?

Placing science and religion at opposite ends of the belief spectrum is to ignore their unique purposes.

Videos
  • Science and religion (fact versus faith) are often seen as two incongruous groups. When you consider the purpose of each and the questions that they seek to answer, the comparison becomes less black and white.
  • This video features religious scholars, a primatologist, a neuroendocrinologist, a comedian, and other brilliant minds considering, among other things, the evolutionary function that religion serves, the power of symbols, and the human need to learn, explore, and know the world around us so that it becomes a less scary place.
  • "I think most people are actually kind of comfortable with the idea that science is a reliable way to learn about nature, but it's not the whole story and there's a place also for religion, for faith, for theology, for philosophy," says Francis Collins, American geneticist and director of the National Institutes of Health (NIH). "But that harmony perspective doesn't get as much attention. Nobody is as interested in harmony as they are in conflict."

Signs of Covid-19 may be hidden in speech signals

Studying voice recordings of infected but asymptomatic people reveals potential indicators of Covid-19.

Ezra Acayan/Getty Images
Coronavirus
It's often easy to tell when colleagues are struggling with a cold — they sound sick.
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Octopus-like creatures inhabit Jupiter’s moon, claims space scientist

A leading British space scientist thinks there is life under the ice sheets of Europa.

Credit: NASA/JPL-Caltech/SETI Institute
Surprising Science
  • A British scientist named Professor Monica Grady recently came out in support of extraterrestrial life on Europa.
  • Europa, the sixth largest moon in the solar system, may have favorable conditions for life under its miles of ice.
  • The moon is one of Jupiter's 79.
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Supporting climate science increases skepticism of out-groups

A study finds people are more influenced by what the other party says than their own. What gives?

Photo by Chris J Ratcliffe/Getty Images
Politics & Current Affairs
  • A new study has found evidence suggesting that conservative climate skepticism is driven by reactions to liberal support for science.
  • This was determined both by comparing polling data to records of cues given by leaders, and through a survey.
  • The findings could lead to new methods of influencing public opinion.
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