Astronomical Observatory. New Delhi, India.

¿Do you want to participate in the international video contest “Science of the City” but you can not find the inspiration? Do not worry! Here there are 72 ideas to look for science, mathematics or technology in your city … You can use any of our proposals, or you can keep looking for new ideas … There are millions of possibilities, just go out and start looking at the city with critical eyes, curiosity and willing to search for science phenomena!

Our suggestions:

1. Traffic lights and other light sources
2. Mirrors, windows and other optical phenomena
3. How to find or create a rainbow in the city?
4. Mirages on cities streets
5. The first and  third Newton’s law (the law of inertia and the law of action and reaction) in cities
6. The conservation of angular momentum and bicycles
7. Physics at the parks (swings, the law of the lever, etc.)
8. Experimenting like Galileo (release of different objects through a window, inclined planes …)
9. The chemistry of foods (acidic or  basic food)
10. How much sugar is in a can of soda?
11. Why Guinness bubbles fall down instead of up?
12. Can you design an electric battery with ingredients bought in a market (lemons, potatoes …)?
13. How do paper airplanes fly?
14. Explain the physics of skateboarding
15. What is the physics of parkour?
16. Why when we go to the theater or any other entertainment we see dancers or ice skaters putting their arms close to their body when they spin faster?
17. Animals that live within the city
18. Plants that grow within the city
19. Analyze an onion’s cells or any other plant’s cell that you buy at the market
20. What happens to food when it is too mature?
21. Why are plants green within cities?
22. Why do we have gas after eating different foods?
23. Find fossils in your city
24. Astronomy in your city
25. Solar panels in your city
26. What is wind? Do you live in a city with a lot of wind?
27. How do bridges stand?
28. How can water arrive to a third floor?
29. Why is the sky less blue  in more polluted cities?
30. Why it rains?
31. How does a windmill work?
32. How does the Wii Remote you have at home work?
33. Why people use lenses?
34. Do you know how they make films in 3D? Can you generate a 3D images?
35. What is a hologram? Are there holograms in cities? And in credit cards?
36. How do the price readers of supermarket work?
37. What happens when you send an email?
38. Why can we talk with cell phones?
39. How do electric cars work?
40. Science in the clothes: Electrical fabric, absorbent tissue, etc.
41. Is there any science in diapers?
42. Nanotechnology in the stained glass windows of churches
43. Butterflies and nanotechnology
44. Discover the laws of thermodynamics on a terrace of a bar or a coffee place
45. Genetics and your family
46. Kinematics and transport (how long does it take to get from one place to another if you travel at a certain speed?)
47. Science, sound and the instruments played in cities
48. How many decibels can you hear in a city? Check it out!
49. The pressure and high heels
50. Waves in the city
51. The Venturi Effect and trains, perfumes, plastic bags at the supermarket or shower curtains
52. Oil and water, why they do not mix?
53. Density & Beverages
54. Parts of the plants we eat and other curiosities that are in a market
55. What type of rocks can you find in cities (sedimentary, metamorphic or magmatic)?
56. Rocks react to hydrochloric acid in our cities? What does this mean?
57. Why do we sleep?
58. What is a micro-chip? Where can we find one?
59. Is there geology in a pencil ?
60. Laws of optics and cameras
61. How does the engine of cars or motorcycles that are in cities work?
62. Relativity and GPS
63. Why dogs urinate as they do?
64. Why do polystyrene cups keep the coffe hot?
65. Electrical appliances at home
66. The transmission of heat in the cities (double glass, …)
67. Spring and plants
68. Friction in the streets (what happens in some crossings related friction? And when it snows?)
69. How does a bell work?
70. Electric cards to celebrate an anniversary
71. The geometry and the papers that cover chocolates
72. Find the number pi in traffic signals

You have no excuse … Science is around us!

Remember that the best videos will have a prize! Good luck!

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