
How do they get all that shaving cream into an aerosol can? Premium
The Hindu
Shaving cream is a mixture of soap, water, and compressed gas that expands to create foam for shaving.
Shaving cream is basically soap and water. It is put into a can along with compressed butane gas. Without the gas, all you have is soapy liquid.
When the valve is pressed, some of the gas mixes with the soap and water, escapes, and expands to make foam.
The filling process is just like that used to fill air in the tube of a tire, or even a balloon.
As long as the pressure is maintained in a closed system and the gas from a pressurised source is not allowed to escape, it takes up a very small amount of space.
The fact that any pressurised gas expands when the pressure is released means that a small quantity of soap and water can make a whole lot of foamy bubbles.

How do you create a Christmas tree with crochet? Take notes from crochet artist Sheena Pereira, who co-founded Goa-based Crochet Collective with crocheter Sharmila Majumdar in 2025. Their artwork takes centre stage at the Where We Gather exhibit, which is part of Festivals of Goa, an ongoing exhibition hosted by the Museum of Goa. The collective’s multi-hued, 18-foot crochet Christmas tree has been put together by 25 women from across the State. “I’ve always thought of doing an installation with crochet. So, we thought of doing something throughout the year that would culminate at the year end; something that would resonate with Christmas message — peace, hope, joy, love,” explains Sheena.

Max Born made many contributions to quantum theory. This said, he was awarded the Nobel Prize for physics in 1954 for establishing the statistical interpretation of the ____________. Fill in the blank with the name of an object central to quantum theory but whose exact nature is still not fully understood.











