Science on Tap brings research to the bar: for everyone curious about the world around them. Scientists share their work in an open, down-to-earth way, making topics tangible and relevant. Grab a drink, listen, and join the conversation.

This edition, PhD candidate Charlotte van Tuijl (Erasmus University Rotterdam) dives into the complex question behind street harassment: How can we better understand the young people who commit it - and what drives their behaviour - so we can design prevention that truly works?

Charlotte’s research focuses on youth participation: working with young people instead of only about them. By engaging them directly in the research process, she explores what lies beneath acts of sexual street harassment and how a deeper understanding can lead to more effective, long-term prevention.

Her approach challenges the usual narrative. Instead of symptom-fixing or victim-blaming, Charlotte shifts the focus toward empathy, insight and responsibility by echoing the familiar call to action: “Educate your sons.” It’s a fresh, necessary perspective that’s rarely heard in public debate.

Join us for an evening that’s equal parts learning, reflection and inspiration. Because change starts with conversation.

Thu 4 Dec | 19.30 - 21.30 | €5 (incl. 1 pilsje, Fritz-frisje of Nelemans-wijntje) | Language: English | OASE
In collaboration with Erasmus Verbindt

On Friday 5 December, the Kantine turns into a dance floor with purpose. A club night where you’re not just dancing for yourself, but for someone else too. All ticket proceeds go to Stichting Het Leerorkest, giving children the chance to learn and play music together at school and in their community.

The three-piece live band Het Concept will launch their brand-new show Shared House. A high-energy journey through 90s house samples, grooves and synths. Surrounding them, our DJs will weave the night together with everything from slow-building beats to proper dance floor heat.

Line-up
20:00 – 22:00 Tommy Smit
22:00 – 23:30 Het Concept (live)
23:30 – 02:00 DJM90’00

The bar’s open, the vibe’s right, and anyone arriving before 20:00 can stay all night. Expect positive energy, good people, and the best reason to dance: giving something back.

Fri 5 Dec | 20:00 - 02:00 | Tickets: €5 | OASE's Kantine

The holidays are about warmth, connection and small rituals that make winter feel softer. One of those rituals is bringing a Christmas tree into your home. But the classic throwaway tree? That one doesn’t quite fit the times anymore. Millions of trees are cut, decorated for a few weeks and then tossed onto the street in January. Not very feng shui.

That’s why OASE and Adopteer een Kerstboom are teaming up again this year. Instead of buying a tree you’ll discard, you can adopt one. Your tree stays alive: you take it home for the festive season, enjoy it in all its green glory and bring it back afterwards so it can return to the soil, recover and come back again next year. Our trees can be replanted three to five times and they’re grown without pesticides, detergents or artificial fertilizers.

Pick up your tree at OASE
Whether you adopted your tree last year or want to join for the first time, you can pick up (or adopt) your Christmas tree at our Kade. Come choose your tree and warm up afterwards in the Kantine, open from 12:00 with hot drinks and good food.

How does it work?
1. Pick your tree at our Kade
2. Bring it back on January the 4th
3. Register your tree on adopteereenkerstboom.nl

Why adopt a tree?
An adopted tree isn’t cut down. It isn’t thrown away. It returns to nature, grows stronger over time and eventually becomes your tree.

A tiny history detour
Evergreens have been symbols of strength, resilience and renewal for centuries. Long before fairy lights, people placed green branches in their homes to honour life during winter. Somewhere along the way we swapped meaning for mass production. Adopting a tree is a way to bring the meaning back. It’s community care, extended to nature.

Prices
White <100cm | €34
Red <125 cm | €39
Yellow <150 cm | €44
Purple <175 cm | €49
Orange <200 cm | €54
Blue <225 cm | €60
*For each adoption you pay a €15 deposit, which you’ll get back in full when you return the tree in good condition after the holiday season.

Sat 6 & 13 Dec | 11.00 - 17.00 | Free entrance | Language no problem | OASE's De Kade

Let's paint some happy little accidents! It's time for another Bob Ross Painting Party!

Special: Reshape Rotterdam
What would Rotterdam look like if it were designed from a feminine perspective? This is your chance to paint a Rotterdam shaped by your own imagination. Think: How would your neighborhood look? What would bike lanes feel like? Bring your boldest, softest, safest, craziest dreams. Nothing is too much. You get to decide. And the long-lost niece of Bob Ross, Bobbi Ross, is here to guide you.

The workshop is led by Saskia den Hartigh and will be in English (but she also speaks Dutch). The workshop takes place in OASE’s Kantine, open from 12:00 with snacks, drinks, cocktails and more.

Program
14:30 – 15:15 | Intro + learning essential Bob Ross skills
15:15 – 15:30 | Break
15:30 – 16:45 | Time to create your own bold Rotterdam masterpiece

Remember: We don’t make mistakes, just happy little accidents.


Sat 6 Dec | Tickets from €29* | Language: English | OASE’s Kantine
*Tickets include your canvas and all painting materials. Just make sure to wear something that can handle a little paint. Happy little splashes happen.

Op woensdag 10 december organiseert het Rotterdams Milieucentrum de jaarlijkse Groene Conferentie, dit keer bij OASE. Het thema van dit jaar: luchtkwaliteit. Hoe zorgen we samen voor schonere lucht in Rotterdam nu de strengere EU-normen voor 2030 dichterbij komen?

In aanloop naar de gemeenteraadsverkiezingen van 2026 (#GR26) is dit hét moment voor politieke partijen, bewoners en experts om met elkaar in gesprek te gaan over een gezonde leefomgeving. Verwacht prikkelende presentaties, nieuwe inzichten en ruimte voor dialoog over wat er écht nodig is om de stad gezonder te maken.

Met bijdragen van:
Bas van den Boogaard (Gemeente Rotterdam)
Peter van Breugel (DCMR)
Tom Koeman (GGD)

Tijdens de conferentie reikt wethouder Chantal Zeegers de Groene Vogel de jaarlijkse prijs uit voor de groenste vrijwilliger van Rotterdam. Verwacht een middag vol kennis, inspiratie en praktische ideeën om de stad schoner en leefbaarder te maken.

Wo 10 dec | 14.30 - 17.00 (inloop vanaf 14.00) | Gratis (aanmelden: vol=vol) | Taal: Nederlands | OASE