Where does all the stuff in the universe come from?

Hook up an old antenna to your TV and scan between channels. The static buzz you hear is mostly due to the ambient radio produced by our noisy pre-galactic civilization. But around one percent of that buzz is something very different –...

Black holes are among the most destructive objects in the universe. Anything that gets too close to a black hole, be it an asteroid, planet, or star, risks being torn apart by its extreme gravitational field. By some accounts, the...

Paul Andersen explains how a respirometer can be used to measure the respiration rate in peas, germinating peas and the worm. KOH is used to solidify CO2 produced by a respiring organism.

Where does all the stuff in the universe come from?

Cosmologist Sean Carroll attacks -- in an entertaining and thought-provoking tour through the nature of time and the universe -- a deceptively simple question: Why does time exist at all? The potential answers point to a surprising view...

Primordial black holes may be lurking throughout our universe. How large are they, how many are out there and what would happen if they moved through our solar system?

At Serious Play 2008, astrophysicist George Smoot shows stunning new images from deep-space surveys, and prods us to ponder how the cosmos -- with its giant webs of dark matter and mysterious gaping voids -- got built this way.

SciShow Space takes to you a world where the night is always dark, the tides are paltry -- and the days are only 8 hours long. See how different Earth would be if there were no moon!

For years, astronomers have been unable to find up to half of the baryonic matter in the universe. We may just have solved this problem.

Mr. Andersen walks you through the cellular respiration lab.

Howcast - Learn what kinds of foods you should be eating -- and which you should never eat -- in this Howcast video about obesity and nutrition.

Today session we will understand the difference between Investment and Speculation.<b<br/>r/>

We will know more pro's and con's of Speculations also the Tips of nevigate the world of finance and securities market.

Astronomers at Cambridge University have developed a groundbreaking method called lucky imaging to obtain a clearer view of the night sky. By using a highly sensitive video sensor and capturing multiple images during atmospheric...

The study of climate, long-term weather patterns and behaviour, rather than its short-term fluctuations. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

With the scale of ecology now understood, we can start to look at one of the most important concepts in ecology, climate. What is climate? How does it differ from weather? How does climate change over time and why? Let's do a deep dive now!

Cosmologist Justin Khoury (Penn) describes what many have described as "the worst failure of contemporary theoretical physics".

Cosmologist Paul Steinhardt (Princeton) highlights a major issue with the theory of cosmic inflation - so-called "eternal inflation" that results in what theorists call a "multiverse".

Physicist Paul Steinhardt, one of the original developers of the theory of cosmic inflation, describes a key problem he faced at the beginning and what his thinking was to get around some of those early hurdles.

Xavier Gabaix argues that public policies should prioritize alleviating deprivation at the bottom over narrowing the rich-poor gap. Gabaix discusses why economies fluctuate, and postulates that firm-level shocks, meaning when a large...

Assigning overhead costs in accounting is difficult. This video explains the use of a predetermined overhead rate when assigning manufacturing overhead in managerial accounting

Can over-optimism endanger the economy?<br<br/>/>

Economist Yueran Ma discusses that very possibility in the credit cycle, as part of INET’s Pr<br/>ivate Debt initiative.

Scientists are starting to understand how solar storms use currents in Earth’s magnetic shield to land some punches.

In this episode, Leslie first defines what blood pressure is and shows how it varies in the blood vessels throughout the body. He then shows what Mean Arterial Pressure is and goes into two different ways to calculate it.