A file photo of children gathered at the Jawaharlal Nehru Planetarium to witness the zero shadow phenomenon Can you calculate the circumference of the earth using the length of a shadow? Sounds ...

In the experiment, a high-power green laser passed through a ruby cube, illuminated from the side by a blue laser. The green laser increased the ruby’s absorption of the blue light, creating a darker ...

Bengalureans to observe no-shadow day today; experts explain this annual occurrence Bengalureans will witness their shadows playing tricks for the second time this year, lasting two minutes today.

This year's equinox will occur this week An equinox experiment can demonstrate the Earth's curvature Shadows would be identical if the Earth were flat This year’s equinox, which marks the first day of ...