Neurologist David Szmulewicz explains how fluid in our ear canals tell the brain how the head is moving, how displaced otoconium crystals in the ear send incorrect messages to the brain, causing dizziness, and how vertigo is treated.
Following the announcement that Coles and Woolworths will be phasing out single-use plastic bags, Mornington Peninsular schoolgirl Meg explains why such plastics are bad for the environment and how she has campaigned to stop shops using them.
Experiment with watermelon and rubber bands around the middle of the watermelon shows force. The more you stretch a rubber band, the more a small force is exerted. Rubber bands bundled together can make a bigger force. The force is applied to watermelon.
The Queensland Rocketry Society's Ari Piirainen demonstrates how hobbyists build and launch rockets, explaining how to get started with a kit, what the different motor sizes are, and how launches are conducted safely.
Chihiro's father makes reference to the "abandoned theme parks" built in the 1990s after they stumble into the new world. Hayao Miyazaki's films make continued reference to the destruction of the environment through human interference and industry.