Tag Archives: physics

Talk at Planetarium

Vigyan Prasar in association with Nehru Planetarium is organizing popular lecture at 10:00 AM tomorrow 23 August 2016 at Sky theater at planetarium. Interested people can join the programme.

The Speaker: Akshat Singhal,
Marie-Curie Fellow – Europe’s most competitive and prestigious awards, Early Stage Researcher (ESR) fellowship within the project Grawiton – European Marie Curie Action INT at Gran Sasso Science Institute in L’Aquila, Italy.

Title of Talk: “The sound of black holes”


Recently mankind has detected first gravitational waves as predicted by Albert Einstein 100 years with his theory of General Relativity. This discovery was considered as one of important discovery in the centuary. One of the most challenging experiment physicists ever undertook, measuring the change in length smaller than 1/1000th of a diameter of proton over 4km. We will discuss how many challenges are overcome and how did we achieve this endeavor.

Physicists Look for Evidence of time travellers on the internet

Physicists R. Nemiroff (of APOD fame) and his student Teresa Wilson, recently published their results of a grand internet search to look for evidence of time travelers. In a nutshell they were looking for ‘time traveler activity’ over the internet, say a timer traveler used his time machine to move back in time and say…send an email, or put information online about world events that just happened way before it actually did. Time travel to the future is allowed by special relativity, however there is much debate if we can actually go back in time.

The search as you may have expected didn’t turn out much …. but made for a pretty good story.

To read more you can download their preprint paper here