Dive in to the fascinating world of science with Tomorrow Today. Your weekly dose of science knowledge. A show for everyone who's curious -- about our cosmos and how it works.
https://www.dw.com?maca=en-podcast_tomorrow-today-3524-xml-mrss
Gesamtlänge aller Episoden: 16 hours 49 minutes
What color is smoke?
The color of smoke depends on what’s burning, and how it’s being burned. Smoke can be black, white, or grey – and chemicals can even make it colorful. This week’s viewer question comes from Harfiz Abu B. from Ghana.
Tambora 1815 - Super explosion with global impact
1816 became known in Europe as the "Year Without a Summer". The year before, Indonesia’s Mount Tambora had erupted in a huge explosion. Ash from the volcano darkened skies around the globe, resulting in failed harvests, famine and epidemics.
Simulated eruptions - Explosions in the laboratory
When does a volcano explode? And when does it erupt more gently, without an explosion? It's a question volcanologists are seeking to answer. No one can look inside a volcanic vent. But laboratory experiments can show how magma erupts and explodes.
Can you see the stars from the surface of the moon?
Contrary to what photos taken by Apollo astronauts suggest, stars are indeed visible from the moon. But they appear differently to what they do here on Earth.
What is the difference between fog and clouds?
Clouds and fog both form when water vapor condenses. So what's the difference between them?
How do solar panels work?
Solar panels convert sunlight into electrical energy, and have turned into a key contributor for making energy supplies more sustainable. But how do they actually work?
What is fog, and how does it form?
Fog coalesces when water vapor condenses. The resulting droplets reflect light and obscure vision. This week's viewer question comes from Dobrila B. from Bosnia and Herzegovina.
What are the Pillars of Creation?
Some 7,000 light-years from Earth are gigantic cosmic columns of dust and gas. Because new stars are coalescing there, the formation is known as the Pillars of Creation.
What are contrails and how do they form?
Condensation trails are linear artificial clouds that form from the exhaust of airplanes. Do they have an effect on the climate? This week's viewer question comes from Al Ben M. in Panama.
What is your blood made of? Where is it formed?
In adults, blood is formed in short, flat bones like the ribs and sternum. This week's viewer question comes from Monica Bustos in Colombia.