Beschikbare afleveringen

• When will the next super-volcano erupt?

  Is the world sitting on a ticking time bomb? CrowdScience listener Christel recently watched a documentary about a volcanic eruption in 536 AD that left her native Sweden under a cloud of ash for three years. It got her thinking, do we...

  10 apr 2026 1745 sec.

• Will rabbits become super predators?

  Listener Bart in Australia sees invasive species in his area almost every day – rabbits, foxes, and cats. They were transplanted to Australia from Europe more than 100 years ago, but seem to be thriving in their new home. This got...

  3 apr 2026 1588 sec.

• Could AI present CrowdScience?

  CrowdScience listener Po wants to know whether AI could one day replace all human jobs. And while he requests that CrowdScience continues to be hosted by people, it made presenters Caroline Steel and Anand Jagatia wonder – could an AI...

  27 mrt 2026 1589 sec.

• Can I unlock my car using my head?

  CrowdScience listener Doug has been experimenting with holding his wireless garage key to his chin. Why? Because he's testing a strange trick of physics. The range of a key can apparently double when held against your head rather just...

  20 mrt 2026 1588 sec.

• Can I really manifest the future?

  CrowdScience listener Kassy in India wants to know if there’s any science to support the practice of ‘manifesting’ – the idea that you can make your wishes come true just by writing down your goals and sending your dreams out to the...

  13 mrt 2026 1588 sec.

• What keeps the universe in balance?

  CrowdScience listener Ndanusa in Ghana, is gazing up at the stars, and wondering. Big philosophical questions, like… what keeps our universe in balance? From our perspective here on earth, the universe seems like a vast, harmonious...

  6 mrt 2026 1865 sec.

• How can we save the Great Barrier Reef?

  Australia’s Great Barrier Reef is one of the richest and most complex natural ecosystems on earth, and it’s home to over 600 species of coral – marine animals that are most closely related to jellyfish. But the coral is under threat,...

  27 feb 2026 1588 sec.

• Why don't more animals have opposable thumbs?

  On a recent kayaking trip, CrowdScience listener Lanier sliced through his right thumb, putting it out of action for a while. This made life difficult, as he couldn’t button his shirt, tie his shoelaces or type efficiently on his...

  20 feb 2026 1588 sec.

• Can we cancel light waves?

  Noise cancelling headphones filter out sound waves that we don’t want to hear. Listener Ahmed in Libya loves wearing his and, as he was listening to them, he had a thought: ‘Could we cancel out light waves in a similar way to how noise...

  13 feb 2026 1588 sec.

• Do multiple choice questions make us biased?

  CrowdScience listener Griffith in Ghana, isn’t JUST a CrowdScience listener. He’s also a listener to our sister show on the World Service, Unexpected Elements. But he’s noticed something funny. In the weekly Unexpected Elements...

  6 feb 2026 1741 sec.

• Why do I tan more in the US?

  CrowdScience listener Namrata and presenter Chhavi Sachdev have something in common. They both get more tanned in the summer in the United States than back home in India. Namrata wants to know why she came back from her run in Boston...

  30 jan 2026 1588 sec.

• Do fish know what they look like?

  There’s something fishy going on in the Czech Republic, where CrowdScience listener Ian lives. He keeps tropical fish, and he’s noticed that when he adds new ones to his tank, they swim with others of the same breed. He wants to know...

  23 jan 2026 1588 sec.