Why cities should learn from nature : The case for biomimicry | FUTURE CAPE TOWN

by Lisa Novacek

Shannon Royden

Can cities learn from nature? Shannon Royden-Turner unpacks the principles of biomimicry as a way to effectively and sustainably move cities forward.

“We’re stuck in a paradigm of not even realizing we’re part of nature” states Shannon Royden Turner, director at Actuality (formally know as in/formal south) during an interview in her Cape Town office on Long Street. With over 15 years of experience, Shannon’s works with local & provincial government, community members, community leaders, NGOs and corporate organisations to uncover solutions that consider the interrelationship between complex components of cities.

Share
Read More

Bee model could be breakthrough for robot development

Scientists at the University of Sheffield have created a computer model of how bees avoid hitting walls – which could be a breakthrough in the development of autonomous robots.

Researchers from the Department of Computer Science built their computer model to look at how bees use vision to detect the movement of the world around them and avoid crashes.

Bees control their flight using the speed of motion – or optic flow – of the visual world around them, but it is not known how they do this. The only neural circuits so far found in the insect brain can tell the direction of motion, not the speed.

This study suggests how motion-direction detecting circuits could be wired together to also detect motion-speed, which is crucial for controlling bees’ flight.

“Honeybees are excellent navigators and explorers, using vision extensively in these tasks, despite having a brain of only one million neurons,” said Dr Alex Cope, lead researcher on the paper.

“Understanding how bees avoid walls, and what information they can use to navigate, moves us closer to the development of efficient algorithms for navigation and routing – which would greatly enhance the performance of autonomous flying robotics”, he added.

Professor James Marshall, lead investigator on the project, added: “This is the reason why bees are confused by windows – since they are transparent they generate hardly any optic flow as bees approach them.”

Dr Cope and his fellow researchers on the project; Dr Chelsea Sabo, Dr Eleni Vasilaki, Professor Kevin Gurney, and Professor James Marshall, are now using this research to investigate how bees understand which direction they are pointing in and use this knowledge to solve tasks.

Their paper entitled ‘A Model for an Angular Velocity-Tuned Motion Detector Accounting for Deviations in the Corridor-Centering Response of the Bee’ is published in PLOS Computational Biology.

Further information:

The Green Brain project

Prof. James Marshall

Dr Eleni Vasilaki

Prof. Kevin Gurney

Share