Discover the phenomena of waves through the magic of ZipString!
Jaw-Dropping Amazement and Hours of Enjoyment!
A ZipString is an incredible device that rapidly propels, a loop of string. When the strings momentum is balanced within the forces of gravity, lift, and drag, the string actually flies! The momentum of the string is derived from its mass and its speed, which is about 35 miles or 65 Kilometers per hour.
Another important feature is the fact that the string in the ZipString isn’t smooth. This is critical to help the string fly. When we look closely, we can see that the string has lots of small filaments that radiate outward. As these filaments move through the air, they create drag. So much so in fact, when you put your hand near the string, you can feel the air movement.
Technically, the string is always under tension. Since the string is a loop, as the string is propelled out of the device, it eventually has to return. As the string begins its return, gravity pulls it downward, but because of the speed of the string, and the drag from the filaments around the string, it creates lift. This lift is mostly pronounced at the distal end, the end farthest from the device. When there’s more lift than the actual weight of the string, the string begins to fly. Another interesting observation is that because of the opposing forces of gravity and lift on the loop of string, the string always orients itself vertically.
When your ZipString runs out of charge, its circuits will automatically disable the motors. Charging your ZipString is a breeze! Just connect it to any USB port using the provided USB-C cable. It can be plugged into chargers, laptops, or any other compatible device. ZipString takes care of regulating its charging rate for safe battery replenishment. The red LED indicates the charging process and switches to blue once fully charged. A single charge can last for hours, and the charging time typically takes up to two hours.
Includes:
– 3 String loops of different sizes and colors
– USB charging cable
– Instruction guide
All authentic ZipString® products meet US Toy Safety Standards and are Phthalates-free, Lead-free, Cadmium-free, Chromium-free, Mercury-free, and Arsenic-free!
