Course offered by The University of Queensland (UQx) via edX: Tropical coastal ecosystems

Title of self-paced course:  

Tropical coastal ecosystem  

 

Offered by: 

The University of Queensland (UQx) via edX   

 

Focus: 

Take the challenge and understand problems and solutions to managing tropical coastal ecosystems.  

 

Level:

Introductory 

 

Duration:  

Approximately 9 weeks to complete

[4-5 hours per week]

 

Prerequisites:

High school science recommended

 

Cost:  

Enroll for free    

 

For more information:  

https://www.edx.org/course/tropical-coastal-ecosystems

 

University of Queensland, Australia - A Physicist Has Come Up With Math That Makes 'Paradox-Free' Time Travel Plausible

Title:

A Physicist Has Come Up With Math That Makes 'Paradox-Free' Time Travel Plausible

 

Author:

David Nield

 

Published:

Science Alert, 26 September 2020

https://www.sciencealert.com/a-physicist-has-come-up-with-the-maths-to-make-time-travel-plausible

 

From the article:

As movies such as The Terminator, Donnie Darko, Back to the Future and many others show, moving around in time creates a lot of problems for the fundamental rules of the Universe: if you go back in time and stop your parents from meeting, for instance, how can you possibly exist in order to go back in time in the first place?

 

It's a monumental head-scratcher known as the 'grandfather paradox', but now a physics student Germain Tobar, from the University of Queensland in Australia, says he has worked out how to "square the numbers" to make time travel viable without the paradoxes.