“In our area, there is a scarcity of laborers. The labor cost is also very high. I invented this areca (betel) nut tree-climbing machine to overcome this problem, as it is necessary for us to harvest ...

Maybe you climbed trees as a kid in your backyard. But have you ever wondered what it would be like to climb a 300-foot-tall Douglas fir? At Silver Falls State Park, you now have the opportunity to ...