1. Light and Sound Tobias Havinga Marcel Smit Massimo Gatti Samuele Favaro 1

2. What is light? The light is composed from electromagnetic waves. The electromagnetic radiation that we see is called visible light. It is the base for every life proces on the earth. Visible light 2

3. Sustainable Light in Holland Solartube Solarlamp Economic lamp 3

4. Solartube It’s naturaly light. You paid alone for the purchase. The daylightkoker can be used for different corners. 4

5. The Solarlamp It’s not expensive It’s very sustainable because it has a PV- system to produce electricity directly from the sun 5

6. Economic lamp It’s as cheap as a normal lamp. It lasts much longer than a normal lamp. 6

7. Sustainable Light in Italy Sidelighting Toplighting 7

8. Sidelighting The vertical windows are the most used. They supply: daylight outside sight easy ventilation The windows however have a limit: the sunlight isn’t distributed uniformly in the room 8

9. Toplighting Compared to vertical windows, they offer some advantages: They are less frequently obstructed by trees and other buildings They spread uniformly the light into the room Rooflight is used to illuminate the room by using the sunlight. 9

10. What is Sound? 10 The sound is an elastic wave The sound is measured by the decibelmeter

11. Differd wall between Italy & Holland Italy: Double wall constituted from: 2 partions in brick 8x45x25cm with vertical holes; Double plaster of cm 1,5 for part; Panels Rockwool 211, tickness 5 cm; Total tickness of the wall cm 25 about. Holland: Double wall constituted from: Outside wall: 100 mm Air: 30 mm Isolation: 90 mm Inside wall: 100 mm Plaster: 12 mm 11

12. Italy She don’t have lowered ceilings. In Van Hall institute 12 Holland: Low ceilings, so there isn’t echo. The wall is made of concrete blocks. Sound ceilings

13. The End