a diving robot comes in lights things up. do you have a science question go to our website and send it in if we answer it on the show you'll get our d.v.d. with light hearted look at albert einstein's most famous theories. the most important thing is to never stop asking questions. good from tropical forests is often even the textured dense and robust that's why tropical timber is sought after in the woodworking industry but many species of exotic trees are now protected and that's why researchers are looking for alternatives for example for making musical instruments.