Home Young Talents Making Way Exploring time reversal with galaxy models (Young Talents Making Way)

Exploring time reversal with galaxy models (Young Talents Making Way)

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Exploring the physical reasons for an arrow of time to reverse in simplified computer simulations using two colliding galaxies..

SPECIAL THANKS TO:
James Armstrong
Mike Nassir
Dr. Joshua Barnes
HISTAR Team

Imagine a box with a barrier across the middle separating two different types of gas. If you break the barrier the two types of gas will mix, and once mixed they stay mixed. Nineteenth-century physicists theorized that if you instantaneously reversed the velocity of each and every atom in the box then the gases would unmix and return to their original places. In this way, they imagined that time would be flowing backwards within the box. Similarly, when two galaxies collide, all their stars mix together and stay that way. The research problem is to explore the physical reasons for an arrow of time to reverse in simplified computer simulations using two colliding galaxies. The computer experiments connect to the real world through the concept of entropy, which applies to both realms. Understanding the role of entropy in the simulations helps us interpret its consequences in realty.The host for this episode is Andrea Gabrieli. The guest for this episode is Aiden Chun.The host for this episode is Andrea Gabrieli. The guests for this episode are Aiden Chun and Kimberly Kothenbeutel.

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