Buy one, get one for free. For sale. 50 percent off now! Have you ever been tempted to buy when stores used these types of promotions? And how does it impact you? Aylin Aydinli (VU Amsterdam) explains how price promotions affect buying decisions, food waste and how a sale can backfire at a company.

If you're afraid to fly, it's probably not a comforting thought that airplanes are designed a bit flimsy. But rest assured, as Calvin Rans (Delft University of Technology) tells you what tricks engineers use to make planes safe despite its flimsiness.

Are you on a dating app? While 10 years ago you're friends might have frowned at you for dating online, nowadays they might even suggest you should create a profile. Giulia Ranzini (VU Amsterdam) explains how dating apps can change who you date.

Streaming services like Spotify provide several lifetimes worth of music. How do you select a song, when there’s so much to choose from? Spotify helps us, with general and personalised playlists. But does that mean Spotify decides what we listen to? George Knox (Tilburg University) tells you all about it.

Our planet is in a terrible state due to climate change, and overconsumption. This has a great impact on human life - billions of people are affected by environmental disasters each year. Joyeeta Gupta (University of Amsterdam) tells you why it’s time to take action to have a healthy planet for healthy people.