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How to judge the direction in which a piece of glass is attacked?

When the contact surface between steel ball and glass is broken when shooting from the outside, the actual contact area is very small and the contact time is very short. However, in the process of shooting, the damage time of the internal structure of the glass is much longer and the affected area is larger, so what you see in the house is concave and larger.

Refer to senior high school physics formula: impulse: I = ft {I: impulse (n? S), f: constant force (n), t: action time of force (s), and the direction is determined by f}. Momentum theorem: I =δP or FT = MVT–MVO {δ p: momentum change δ p = MVT–MVO, which is a vector type}. In addition, it is suggested to use tempered glass. The strength of tempered glass is five times that of ordinary glass, and laminated glass is better, so it can be used as tempered double-layer glass.

Matters needing attention in the use of window glass

Glass wall decoration is ok, but there is a principle that it is not suitable for beds. In addition, the glass wall decoration must be placed by solid walls, which will not make the space unclear.

Like the glass partition between the living room and the bedroom, it is not suitable, because it will disturb people's minds because of poor sight. From the perspective of geomantic omen, the living room is the area where guests can move, which belongs to the sun, and the bedroom is the place where the owner rests, which belongs to the shade. If you use a glass wall, it will become a clear pattern, and the host and guests in the hall will have a panoramic view of every move. Without privacy, people will be emotionally unstable and in a trance.