You should make it darker to get pass Argus.

Yes, shut down the lamp

Maybe you could break it somehow. Look at the floor.

What weapon could be used to shoot pebbles? Use your engineering skills!

Kids use slingshots to fire pebbles.

There is an Embellishment on the top platform railing. That looks like a slingshot-ey piece.

You need something elastic to complete the slingshot.

You chewed something elastic earlier.

Pick the chewing gum under the mosaic and combine it with the y-shaped piece. You have a slingshot.

Combine the pebble, from the ground, with the slingshot and shoot the lamp off.