Curated by CLAI
HEARING HOT V. COLD: Can you hear the difference between hot and cold water? Most people can.
- Cold water is more viscous than hot water, because the molecules are wiggling less rapidly, so they are effectively stickier. How viscous a liquid is affects how it pours, and therefore how it sounds.
- Bubbliness is also a factor. There tends to be more bubbling in a liquid that’s hot. As you have more bubbling, you tend to get higher frequency sounds from it.
LEFTOVERS? You can share it. With an app.
- HUNGARY: Picniq allows users share what they are cooking and eating — and for users to share in those meals.
- GREECE: Cookisto began as a way to connect home cooks with busy people looking for a hot meal.
- GERMANY: Foodsharing.de allows its 43,000 users to share surplus food in Germany, Austria and Switzerland.
- ITALY: Ratatouille allows users to post their extra food in their “fridge” in the app for others to claim and arrange drop-off points.