Baseball Bat from Rough Sawn Lumber
Adults DesignIn this video I make a baseball bat from scratch, using maple and walnut. Most baseball bats are made with a solid piece of wood such as ash, hickory or maple, however I thought it would look really cool to add some walnut. So, I first got three boards, two maple and one walnut, that were at least 40 inches long.
Boeing: Lightest. Metal. Ever.
Adults DesignMicrolattice is the lightest metallic structure ever made. At 99.99% air, it's light enough to balance on top of a dandelion, while its structure makes it strong. Strength and record breaking lightness make it a potential metal for future planes and vehicles.
How Does A Sailboat Actually Work?
Adults DesignHow does a sailboat work? The standard idea is that the wind pushes the sails from behind, causing the boat to move forward. Although this technique is used at times, it is not the most efficient way to sail a boat (and it means the boat can never go faster than the wind). Lift is the key mechanism driving a boat forwards. As air flows over the sails, it moves faster over the outer side, creating lower pressure than on the inner side. This produces a force which is mostly to the side and a bit forwards.
What is Nest? Why did Google buy it for $3.2 Billon
Adults DesignNest builds products like this thermostat that can be remotely set via your smartphone or tablet to automatically adjust to a particular temperature. It also connects to Wi-Fi to analyze and compare the outside weather with your indoor environment in real-time. The thermostat even has a sensor with a 150-degree range to detect when you're not home, so it can adjust the temperature accordingly, and save energy.