Bubble physics explains beer’s

On the web site of New Scientist from November 26, 2014, a picture about beer’s physics mystery.

Oktoberfest – Bier fair. Cheers! Winterthur, Canton Zürich. Switzerland – 2006

The Border Tax Unraveled

On the web site of Milken Institute Review from April 17, 2017, a picture about laughing customs officers at the he border between Switzerland and France.

Switzerland. Canton Vaud. La Cure. French and swiss customs officers talk together and laugh on each side of the paving stone which mark the official border line. – 1992