Join Rosie Research for kids science activities every weekday at 11:30 a.m.
Thursday: Eavesdropping with Ease (Physics/Engineering)
Activity: Build a parabolic microphone.
Listen to distant conversations undetected with this clever sound amplifier.
Supplies:
- Bowl/dish/pan (the more curved it is the better, flat bottoms are less desireable)
- Popsicle sticks or thin cardboard
- Tape
- Binder clips (2)
- Cheap microphone (you can find $6 ones on Amazon, or you can try with the mics on your parents headphones)
- Access to a phone/mp3 for audio recording
