Hi friend,

Today, Dec 21st, is the solar solstice - shortest day in the Northern hemisphere, longest in the Southern. First day of winter in the north, first day of summer in the south.

It’s a special occasion that deserves it’s own special issue of the newsletter.

Here’s 6 informative tweets about this day and its significance.

Admittedly, most of these are from the Northern hemisphere POV - hence the focus on the winter solstice.

Love,

Harshal

P.S. The next regular issue is #100. 😃 

P.P.S. Share the newsletter with a loved one. ‘Tis the season to be informed. And awed.

#1 🤯 

#2 🤯 

#3 🤯 

#4 🤯 

#5 🤯 

#6 🤯 

That’s it for this issue.

Hit ‘reply’ to tell me what you think.

And hit ‘forward’ to share with your friends and family.

Let’s all celebrate science and engineering and curiosity.

Best wishes,

Harshal

Special past issues

• Venn diagrams

• Total solar eclipse

• Aurora (Northern lights)

• Nobel prize - 2024

• Physical Nobel prize - 2024

• Chemistry Nobel prize - 2024

• Halloween 2024

• Fibonacci series

• pi day 2024

• Blue Ghost (Firefly) Lunar lander

• Pope Leo XIV

• Dr. Jayant Narlikar