RC 261024947
Saturday, 24 October 2026
Valerie's Saturday show ended a Guess the Suburb contest, won by Norwood, and then took listener questions on how planes fly, ships float and phone calls cross oceans.
- 05:55
Norwood was the answer to Guess the Suburb, a leafy melting-pot suburb with a main road of world-class restaurants and a shopping centre sharing its name. Albert and Tremaine guessed correctly.
- 06:32
Your voice becomes an electrical signal, then digital data, which travels by radio waves to a cell tower and onward through undersea fibre-optic cables stretching across oceans.
- 06:19
Planes fly through four forces: engine thrust pushes them forward, wing shape creates lift through a pressure difference, gravity pulls them down, and drag resists movement through the air.
- 06:46
A steel ship floats because its hollow hull holds lots of air, keeping its average density below water's. Too much water inside can make it sink, a principle called buoyancy.
- 06:44
Fears may come from watching others or from the amygdala, the brain's threat-detection structure, rather than only childhood trauma, Valerie said, answering a listener who fears holes.