Upcoming Chai and Why sessions

For updated information and to leave a response please visit our facebook page

At Prithvi Theatre, Juhu

Chai and Why?

"Goodbye, Mr. Kilogram"
Amol Dighe

Sunday October 1, 2017
11:00 am
Prithvi Theatre

The unit of mass - the kilogram - is currently the only SI unit defined by a physical object. A platinum-iridium cylinder kept in a high-security vault outside Paris has defined the kilogram. All masses are compared against this "International Prototype Kilogram", or "Le Grand K". For decades, metrologists have been trying to eliminate the need for such a physical object. From the next year (2018), the kilogram will have a new definition based on the fundamental constants of nature, and "Le Grand K" will be retired. In fact, many of the SI units of measurements -- including those of current, temperature, and brightness -- will also be redefined in terms of fundamental constants of nature. Will this make us heavier, cooler, or brighter? Come and find out the new way of thinking about units of measurement and constants of nature.

About the speaker: Amol Dighe is a theoretical physicist in TIFR where he tries to find the properties of elementary particles and learn about the fundamental forces of nature.

At Ruparel College, Matunga (w.r.)

Chai and Why?

Lights, Chemistry, Action!
Soumyajit Mitra

Sunday Sep. 17, 2017
11 am
D.G. Ruparel College, Matunga (W), Mumbai Room 7-Arts

Chemical reactions are more than just formulas and equations! Today, ultra-fast laser pulses can be used to capture the motion of individual atoms and molecules participating in a chemical reaction. Laser light now allows us to make "slow-motion" movies of the basic processes of matter and life as molecules twist and turn and bonds are broken and formed. Let's see chemistry in action!

At Alexandra School, Fort

TIFR@Alexandra School
Chai and Why?

Next session at Alexandra School will be on Sunday, Oct. 29, 2017

To be announced


Chai and Why Archives

For information on earlier Chai and Why session please Click here

Watch some of the earlier Chai and Why? sessions on YouTube.