Great Moments In Science

They can seal tight, suck, blow, whistle, hold and kiss. With hundreds of muscles and multiple layers of cells, the human lip serves a much greater role than we give them credit for.

For 50 years air conditioning in commercial buildings has been set using the Standard 55 guidelines. But many workplaces aren't staffed solely with 40-year-old men dressed in 60s business suits, and that's left women out in the cold, as Dr Karl Kruszelnicki argues.

For 50 years air conditioning in commercial buildings has been set using the Standard 55 guidelines. But many workplaces aren't staffed solely with 40-year-old men dressed in 60s business suits, and that's left women out in the cold, as Dr Karl Kruszelnicki argues.

From the formation of Earth until now, many factors have contributed to its changing state. But humankind has been a major contributor in a relatively very small period of time, as Dr Karl Kruszelnicki argues.

From the formation of Earth until now, many factors have contributed to its changing state. But humankind has been a major contributor in a relatively very small period of time, as Dr Karl Kruszelnicki argues.

Could lightning be used to power the planet instead of fossil fuels? Karl Kruszelnicki finds out.

Could lightning be used to power the planet instead of fossil fuels? Karl Kruszelnicki finds out.

It take a unique series of weather factors to create the awesome power of lightning but when it 'strikes' it comes to earth with 1000 times more energy that a household electrical system and with more heat than the sun but capturing this energy is difficult as Dr Karl Kruszelnicki explains.

It take a unique series of weather factors to create the awesome power of lightning but when it 'strikes' it comes to earth with 1000 times more energy that a household electrical system and with more heat than the sun but capturing this energy is difficult as Dr Karl Kruszelnicki explains.

As New Year's Eve ticked over to 2017, scientists added an extra second to atomic clocks to compensate for the Earth's variable rotation. But there are pros and cons to doing this, as Dr Karl Kruszelnicki explains.