Preheat oven to 225 – 250F°. Line a baking sheet with aluminum foil and place the pine cones in a single layer on the pan. Bake for 30 minutes. Remove from the oven and take off the baking ...

The pine cones will then close up in the water. 3. Shake off the excess and pop them in the oven to bake for approximately 90 minutes, but keep checking on them to make sure they don’t burn.

Pine-cone-inspired Solar Gate window units getting put to the test in the University of Freiburg's livMatS Biomimetic Shell building University of Stuttgart 2 / 5 ...