Sciency Words: Longitude Prize

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Today’s post is part of a special series here on Planet Pailly called Sciency Words. Every Friday, we take a look at a new and interesting scientific term to help us all expand our scientific vocabularies together. Today’s word is:


300 years ago, the British Empire faced a major problem: how can a ship at sea accurately determine its position. Finding your latitude was easy and involved measuring the distance of the Sun or North Star from the horizon, but what about longitude? No one knew, so Parliament offered 20 thousand pounds to anyone who could figure it out.

Het Kanonschot - Canon fired (Willem van de Velde II, 1707).jpg
A British “man of war,” the backbone of the British Navy from the 16th to 19th Centuries.

Today, the Longitude Prize is back. 10 million pounds will be offered to help solve one of six challenges currently facing humanity. Those challenges are:

  • Antibiotics: What can we do to prevent bacteria from becoming resistant to our antibiotic medications?
  • Dementia: People live a lot longer than they used to, and that means we’re seeing more cases of Alzheimer’s and dementia. What can we do to help the elderly maintain healthy, independent lifestyles?
  • Food: How will we feed over 9 billion people in the coming decades?
  • Flight: Can we build commercial aircraft with zero carbon emissions?
  • Paralysis: Could new medications and/or cybernetic technology make it so the paralyzed can walk again?
  • Water: Only a tiny percentage of the water on Earth is safe to drink. Again, the world population is expected to exceed 9 billion in the coming decades, so how will we provide clean drinking water to all those people?

Anyone who has a BBC iD can vote on which of these six projects should get Longitude Prize funding (click here for details). My choice would be either for flight, since I’d love to travel without feeling guilty about the environment, or water, a problem which I suspect affects the greatest number of people worldwide.

So what about you? Which project would get your vote?

P.S.: The original winner of the Longitude Prize was John Harrison who found a way to calculate longitude by comparing the position of the sun (or other astronomical object) to the time of day.