Why are peaches and some other fruits fuzzy?
Have you ever picked up a peach in the supermarket and noticed that its skin is covered in soft fuzz? What’s that about? Should we be taking our peaches to barbershops? And what about kiwis? They’re c...
7 Jan 20255min
How were black holes first discovered?
Black holes are mysterious. They are so dense that no light can escape them, which makes them super hard to find! So how did we discover the first black hole? We asked NASA engineer Varoujan Gorjian t...
6 Jan 20257min
How do records work?
Records are big flat discs with circular lines on them that you can use to play music. But how does a record work, anyway? We asked audio engineer Josh Bonati to help us find the answer. Got a questio...
20 Des 20247min
Do airplanes have a speed limit?
Airplanes fly high in the sky and at super fast speeds. But is there a limit to how fast they’re allowed to fly? You know, in the way cars have speed limits? For this episode, we talked to Bobby Sharp...
19 Des 20245min
How do stethoscopes work?
Have you ever been to the doctor and had them listen to your body with a stethoscope? It’s that funny looking thing that looks like a long rubbery tube with a round metal circle on one end and two ear...
18 Des 20246min
How many times does our heart beat a day?
Most of us know that we have a heart. We know that it beats - sometimes faster, sometimes slower. But just how many times does it beat in a day? We asked Dr. Courtney Jordan Baechler to have a heart-t...
17 Des 20246min
How do sinkholes form?
Have you ever seen a sinkhole? These are spots in the Earth’s surface where the ground has collapsed and formed a hole. Sometimes they can be more than a hundred feet deep! But how do sinkholes form? ...
16 Des 20246min
What would happen if I went inside a black hole?
Black holes are super dense spots in space. They have so much gravity that when something falls into a black hole, it can’t escape. We asked UCLA astrophysicist Dakotah Tyler to help us imagine what i...
13 Des 20246min
