Video analysis of one-dimensional motion and collision for distance learning laboratory [Scholarly Article - Physics Education, June 2022]

Title:

Video analysis of one-dimensional motion and collision for distance learning laboratory

 

Author:

Thammarong Eadkhong, Chitnarong Sirisathitkul & Sorasak Danworaphong

Published:

Physics Education, Volume 57, Number 5, 10 June 2022

https://iopscience.iop.org/article/10.1088/1361-6552/ac72e4

Abstract:

Video analysis is carried out for one-dimensional motion and collision experiments using Tracker. Physical variables, i.e. displacement, time, and velocity, can be deducted from the analysis and allows one to connect them to the equation of motion and energy conservation. Corresponding equations of motions are given without neglecting the effect of friction and air resistance. Their solutions are used as models for data-fitting purposes. The fitting results allow one to find the surface friction coefficient and the air resistance parameter for the first experiment and friction for the second experiment. These experiments and analyses can be implemented for at least sophomore-level physics in a university. However, if simplified by removing all resistant parts, they can be used for high-school or first-year students in a university. The video files can be distributed to students for online courses that are prevalently ongoing worldwide due to the COVID pandemic. Students can observe the experiments and analyse data at home. With scheduled online consulting sessions, students can conduct the analysis with helps from instructors.

A Concerning Change Is Happening to Earth's Water Cycle, Satellite Data Reveal [Science Alert, May 2022]

Title:

A Concerning Change Is Happening to Earth's Water Cycle, Satellite Data Reveal 

 

Author:

Carly Cassella

 

Published:

Science Alert, 2 May 2022

https://www.sciencealert.com/earth-s-water-cycle-is-accelerating-and-it-s-cause-for-great-concern

 

From the article:

Climate change is throwing Earth's water cycle severely out of whack. According to new satellite data, freshwaters are growing fresher and salt waters are growing saltier at an increasingly rapid rate all around the world. If this pattern continues, it will turbocharge rainstorms.

ALSO SEE

Olmedo, E., Turiel, A., González-Gambau, V. et al. Increasing stratification as observed by satellite sea surface salinity measurements. Sci Rep 12, 6279 (2022). https://doi.org/10.1038/s41598-022-10265-1

Time might not exist, according to physicists and philosophers – but that’s okay [The Conversation, April 2022] & A New Book on this topic

Title:

Time might not exist, according to physicists and philosophers – but that’s okay

 

Author:

Sam Baron

Associate professor, Australian Catholic University

 

 Published:

The Conversation, 14 April 2022

https://theconversation.com/time-might-not-exist-according-to-physicists-and-philosophers-but-thats-okay-181268

From the article:

Does time exist? The answer to this question may seem obvious: of course it does! Just look at a calendar or a clock.  

 

But developments in physics suggest the non-existence of time is an open possibility, and one that we should take seriously.  

 

How can that be, and what would it mean? 

 

ALSO SEE

 

New book to take note of.

 

Title:

Out of time: a philosophical study of timeliness

 

Authors:

Samuel Baron, Kristie Miller & Jonathan Tallant

ISBN:

9780192864888

 

Published:

Oxford University Press, 14 April 2022

 

Click here for more information on this book

 

An Ancient Namibian Stone Could Hold The Key to Unlocking Quantum Computers [Science Alert, April 2022]

Title:

An Ancient Namibian Stone Could Hold The Key to Unlocking Quantum Computers

 

Author:

David Nield

 

Published:

Science Alert, 19 April 2022

https://www.sciencealert.com/an-ancient-namibian-stone-could-hold-the-key-to-unlocking-quantum-computers

 

From the article:

One of the ways we can fully realize the potential of quantum computers is by basing them on both light and matter – this way, information can be stored and processed, but also travel at the speed of light.  Scientists have just taken a step closer to this goal, by successfully producing the largest hybrid particles of light and matter ever created.

 

Note:

Research on this topic was published in Nature Materials.

 

Carnegie Mellon researchers trained AI to simulate our universe on a GPU [Neural, May 2021]

Title:

Carnegie Mellon researchers trained AI to simulate our universe on a GPU 

 

Author:

Tristan Greene

 

Published:

Neural, 5 May 2021

https://thenextweb.com/news/carnegie-mellon-researchers-trained-ai-to-simulate-our-universe-on-a-gpu

 

From the article:

Simulating the universe is difficult. There are, after all, potentially infinite variables to consider. 

 

Scientists typically use supercomputers to crunch data at the cosmological level, but a team of researchers from Carnegie Mellon recently figured out a way to use the same machine learning technology used to teach AI to paint or create music like a human to run advanced simulations on graphics processing units (GPUs).

 

All India Council for Technical Education (AICTE) - Studying engineering without physics and maths is like a building without foundation [ThePrint, 2021]

Title:

Studying engineering without physics and maths is like a building without foundation

 

Authors:

S.S. Mantha & Ashok Thakur

 

Published:

ThePrint, 6 April 2021

https://theprint.in/opinion/studying-engineering-without-physics-and-maths-is-like-a-building-without-foundation/634583/

 

From the article:

AICTE making maths, physics optional for engineering sounds ‘flexible’ only on paper. Its bridge courses won’t fix the problem.

University of Arkansas - Physicists build circuit that generates clean, limitless power from graphene

Title:

Physicists build circuit that generates clean, limitless power from graphene

 

By:

University of Arkansas

 

Published:

Phys.org, 2 October 202

https://phys.org/news/2020-10-physicists-circuit-limitless-power-graphene.html

 

From the article:

A team of University of Arkansas physicists has successfully developed a circuit capable of capturing graphene's thermal motion and converting it into an electrical current.

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.