【Astronomical Time】Swinging Mechanical Clock | Ancient Mechanical Wooden Teaching Aid

**What is a swing clock?** Different from the clocks we see everyday, the swing mechanical clock has a long "adjustable pendulum" on top. By hanging weights of different weights and adjusting the pendulum length, the hands on the clock face will move at different speeds! **★ Professor Huang Qinfei of National Taiwan Normal University provided guidance and research on Brain-STEAM brainwave research** **★Recommended by more than 100 elementary and middle school teachers** **★American STEM.org certification** https://live.staticflickr.com/65535/51376178085_f04ecc5997_h.jpg "Timekeeping" is an indispensable technology in any era, which has greatly changed the stability of human life and technological innovation. The way of timekeeping has evolved with the times, from the water clock in ancient times to the mechanical clock invented in the Middle Ages, and even today's electronic watches, all of which have improved our daily convenience. During the Ming Dynasty, Italian missionary Matteo Ricci presented a pendulum mechanical clock as a tribute to the Eastern world, presenting this imported Western product together with the results of scientific research, which amazed the Eastern world. We are launching the "Swinging Mechanical Clock" to simplify the principle of the ancient pendulum, insist on not using electricity, and use the combination of pendulum length, gears and weights. Children can try different combinations of the three during the assembly process, and easily understand the mechanism principle of the mechanical clock, the pendulum principle, gears, and the escapement system design. They can also admire the greatness of the ancients inventing timekeeping tools, stimulate scientific sensitivity and interest, and it is an excellent opportunity for practice and learning! **｜Little knowledge about the escapement system｜** In the world of watches, the term “escapement” is often mentioned. What exactly is it? The escapement was first invented by Philo of Byzantium in Greece, but the escapement used in clock mechanisms was developed by Thich Nhat Hanh, a Tang Dynasty monk and court astronomer, mathematician, and engineer. "Escapement" literally means "gathering and releasing". Through this mechanism, power can be collected first and then adjusted using other parts, allowing the movement to maintain stable operation accuracy and the second hand to run in an orderly manner. The quality of the escapement mechanism will affect the accuracy of the mechanical watch! **➤ Product details** Difficulty level: ★★★☆ (five stars is the highest) Assembly time: about 2~2.5 hours Recommended age: 6 years old and above Also included in the package: Graphic assembly instructions Product size: 22cm྾9.5cm྾28cm (excluding swing rod) Packing size: 30cm྾23cm྾3.5cm Material: non-toxic birch Origin: Taiwan **➤ Notes** • Please use the provided sandpaper to sand the wooden parts before assembling them. Also, be careful not to let children swallow the small parts. • No glue is needed, just install the parts in the correct position and brackets according to the instructions, and confirm the tightness of the parts assembly to ensure that the model can be used normally after assembly. • If there are any missing parts or other assembly questions, please contact the Design Center. • This design center has a seven-day appreciation period. The appreciation period does not mean assembly and trial use. If assembly is required, it will affect your return and exchange rights. • When returning or exchanging products, please keep the outer packaging intact, and also return any gifts and contents. Returns will not be accepted if the product is damaged or has been assembled. **▲ There are additional discounts for educational institutions for bulk purchases. Click "Contact the Design Center" and someone will contact you.**