GREAT MOMENTS IN SCIENCE: Pi is a very long and a very important number, but how many decimal places of it do we really need to know? Dr Karl investigates.
From the Blog
GREAT MOMENTS IN SCIENCE: Astronauts on the International Space Station breathe air almost identical to the stuff we breathe on Earth. Dr Karl explains where it comes from.
GREAT MOMENTS IN SCIENCE: There may be a whole range of reasons why it’s not good to water plants in the middle of the day, but is burning the plant’s leaves one of them? Dr Karl investigates the physics of plants and water.