Description: A telescope is an optical instrument that makes use of lenses or mirrors and other optics to observe distant objects. Using the refraction of light through the lens or the reflection of the light by the concave mirror into the aperture and convergence imaging, and then through a magnifying eyepiece to be seen. Also known as the "telescope." The first role of the telescope is to enlarge the angle of the object in the distance so that the human eye can see the smaller details of the angle. The second function of the telescope is to send a much brighter beam collected by the objective than the diameter of the pupil (up to 8 mm) into the human eye so that the observer can see the original invisible dimly lit objects Suitable for training with parents and children handmade telescope, exercise ability to understand the principle of telescope structure, experience the principle and phenomenon of optical lens refraction. Suitable for parent-child activities entertaining. In daily life, optical telescopes are usually cylindrical optical instruments that focus light directly through the refraction of a convex lens, or through the reflection of a concave lens, or through a magnifying eyepiece. Optical telescopes in everyday life are commonly called clairvoyance. This product is a small mini astronomical telescope model, it is different from the observation object is inverted For 3+ years old children kids Material: plastic Color: black Specification: Experimental Preparation and Understanding of Experimental Equipment: condenser tube, convex mirror Experiment Purpose: 1. Learn about the structure and principle of telescopes and microscopes 2. Understanding the importance of imaging applications of convex lenses to human life and social development and understanding the sustainable development of science and technology Experimental Cognition: Condenser: a tool for shielding the peripheral light Concave Mirror: The concave and convex mirrors follow the law of light reflection: the incident angle is equal to the reflection angle, and the light incident along the normal line of the reflection point is the same as the incident path but opposite in direction Experimental Report: It caused by the size of eyes into "perspective". In addition to the perspective of the object size, but also with the distance betwween the eyepiece and the object. It looks like looking a mountain is very small in the distance, but it is very large in the near sight. Although the object made by the telescope's objective lens is smaller than the original object, it is very close to our eyes. When combined with the enlargement of the eyepiece, the angle of view can become very large Size Chart: 24.5x2.6cm/9.6x1inch Package Includes: 1 Set DIY Assembly Telescope Model Kit Note: Chocking Hazard - Small parts. Not for children under 3 years
