Voice of the Trees by Bartholomaus Traubeck

Years’ Tree Turntable demonstration. Utilizing various make-shift components, German designer Bartholomäus Traubeck has managed to create a modified record player that takes wood slices of a tree and makes music from its inner rings.

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Lesson 2: Observing the Past

This lesson helps learners understand how events are recorded in tree-rings as well as review basic adaptations of trees. Analysis and interpretation of tree-ring data are also covered in this lesson through two hands on activities. Lesson 2 Workshop PowerPoint Presentation Lesson Plan Bell Work PowerPoint Paper Tree Cookies #1 and #2 Images Coring and…

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Lesson 1: From Seeds to Giants

This lesson introduces basic concepts of tree growth and encourages learners to make observations and draw conclusions about events that occur during the lifetime of a tree. A review of tree growth processes and the structure of annual tree-rings is also covered in this lesson. Lesson 1 From Seeds to Giants PowerPoint Presentation Lesson 1:…

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$1 Laser Pointer Macro Lens Hack (or just 10 cents)

cell phone using macro lens hack to magnify five dollar bill

Learn how to take apart a $1 keychain laser pointer from Family Dollar and turn it into a macro lens for either a cell phone or tablet. It basically turns your device into a low-powered microscope that can take photos or videos. NOTE: If you don’t want to hack the laser pointer keychain, you can…

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