The first episode of Dr Who aired on television on the 23rd November 1963. The series became part of the Badger’s childhood routine, although it almost didn’t! It aired on Saturday evenings, and initially the Badger’s parents didn’t think it suitable for their children to watch on the family’s black and white television. They capitulated following tantrums by the Badger and his siblings, however, on the understanding that if we had nightmares then the programme would be excluded from Saturday night viewing. We never had nightmares, but we often cowered behind the sofa when our parents were out of the room and an episode included the Daleks or Cybermen.
As an undergraduate at university years later, watching Dr Who with friends on a communal television in the Students Union was a weekly ritual, one which always led to discussions about the episode’s ‘whimsical science’ in the bar afterwards. One friend, a chemistry student who became an electrochemical research scientist in the battery industry, always asserted that the gadgets in Dr Who, the Daleks, and the Cybermen had one thing in common – a fundamental reliance on batteries! Dr Who’s still on television today and the Badger’s still in contact with his friend. In fact, we chatted recently after the Dr Who 60th anniversary special episodes. His friend asserted the same point about batteries that they’d made all those years ago, and they added that any of Dr Who’s gadgets, cyborgs, or robots that were more than two years old needed charging multiple times a day! Since the Badger’s two-year old smartphone now needs more frequent charging than six months ago, we laughed and agreed that smartphones proved their point!
The physics, materials, chemistry and design of modern batteries is complex. According to his friend, in the coming years we’ll see improvements in how fast batteries can charge and how many charging cycles they can withstand, but not a huge change in how long they can last between charges. If that’s the case then battery life, charging frequency, charging speed and depreciation will be key criteria when buying goods requiring batteries for years to come. Depreciation is an often forgotten but particularly sobering point because after 3 years an iPhone, an Android phone, and a battery electric vehicle will have lost ~50%, ~75%, and 50% of their initial value, respectively.
Dr Who, of course, doesn’t worry about such things, but for those of us in the real-world batteries and the depreciation of the goods they power are key aspects of modern life and the cost of living. Dr Who is full of creative license and not practical matters like batteries and depreciation, and so it should be! It’s science fiction and highly imaginative escapist entertainment. It should trigger to interesting discussions about ‘whimsical science’ and batteries over a beer in a Student Union bar for years to come…
