Here’s the No 10 bus stop closest to my house, that I frequently take to go to downtown.
Oaxaca (say ‘wa-HAH-ka’) is in southwestern Mexico and best known for its Zapotec and Mixtec indigenous peoples and cultures.
Look for a Grumpy Cat helium balloon carried by the child in the bottom middle of the picture.
As it happens, helium was discovered 150 years ago to the day, on August 18, 1868, by the French astronomer, Jules Janssen, during a total solar eclipse. There is a strong case to be made that helium balloons be banned.
We have a limited helium supply in Earth’s crust; we cannot manufacture it, and we need it for superconductors and MRI scanners. So putting helium in balloons is a frivolous waste. Once helium ends up in the atmosphere, it is lost forever into space – it is too light to be contained in the atmosphere by gravity.