Sign up for an Award
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
In some remote areas, power failure is a very frequent phenomenon, which leads to many children's inability to learn at night; toy lamp is children's toy in the daytime, when children play with toys in the daytime, kinetic energy is generated and can be converted into electric energy, which can be used as a lamp for children's learning at night.