The aviation industry needs to lower fuel consumption and emissions. So what might ecofriendly planes of the future look like? Also on the show: using lightning to break up concrete; aggressive motorists; and the welfare of fish in captivity.
The broadcast times are determined using the time setting of your computer, and refer to the applicable time zone of your region. This is where you change the automatically set time zone. Please note that these are standard UTC time zones, i.e. with no adjustments for summer time.