Smart and modern materials

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How smart ink works- smart material

Each pixel point cotains black beads (negativly charged) and White beads (positively charged). Each pit is topped with a tranaperent electrode and has two other electrodes at its base. Altering the charge on the base electrodes makes either the white or black beads leap to the top. forming either a blank or black spot on the larger display, Mkaing one base electrode positive and the other negative creates a grey spot. 

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Radio frequency identification- Smart material

The transmitter sends signals to the transponder: The transponder then transmits a resonse signal that is recieived by the transmitter. The information from the transmitter can be used to identify the transponder and any item it is attached too. 

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Thermochromic liquid crystals-smart materials

Senses heat from the body 

Coductive ink > forhead  >Tempreture gauge colour bars > Thermochromic layer. By presssing the thermomoter to the forhead, the tempreture generated turns the thermochromic ink translucent. This reveals the tempreture generated turns the thermochric ink translucent.  

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Piezoelectric crystals- Smart material-

A piezoelectric crystal is a material that expands and contracts when electric current is applied. The piezoelectric effect converts this mechanical stress or vibration into electrical signals and vice versa. 

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Liquid crystal displays (LCD)- Modern material-

A cell containing a liquid crystal has a voltage applied, and on which it appears to to go 'dark'. This caused by the molecular rearrangement within the liquid cystal. The LCD has a pattern of conducting electrodes that is capable of displaying numbers via 7 segments. These are then made to appear by applying voltage to the different segments, which turn dark in relation to the silvered backround. 

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Phosphorescent pigments- modern material

Absorb energy during the daytime conditions and are capable of storing that energy for some time, then releasing it relatively slowly in the form of light. 

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Electroluminescent lighting- modern material-

Electrolimiinescient lighting converts electrical energy into light energy by applying a voltage across electrodes- 

An organic phosphor is sandwhiched between two conductors and the electric current is applied. The charged phosphor crystals emit readiation in the form of visable light. 

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