Download presentation
Presentation is loading. Please wait.
1
Harnessing light: possibilities & challenges
NATIONAL SCIENCE SEMINAR- 2015 Harnessing light: possibilities & challenges Presented by : Ashish Dwivedi 10th ‘A’ Guided by : Dr. Yogendra Kothari Govt. School For Excellence
2
.
3
NEW TECHNOLOGIES OF HARNESSING LIGHT
USING OF LASER IN DEFENCE. Solar concentrator HARMLESS INFRARED LIGHT SHOWS VEINS IN OUR BODY A LATEST TECHNOLOGY USED IN DATA TRANSMISSION. USING OF LASER IN THE SURGERY OF GUMS OF THE MOUTH
4
SOLAR CHARGER INVISIBILITY COAT WATER PURIFICATION THROUGH ULTRAVIOLET RADIATION (UV). LIGHT PEAK (OPTICAL CABLE COMMUNICATION) SOLAR CAR
5
HARNESSING LIGHT
7
THIS IS AMAZIING AND UNBELIEVA
-BLE PROJECTOR THAT CONVERTS FLAT SURFACE INTO A 10 INCHES TOUCH SCREEN BY HOLOGRAPHIC LASER PROJECTION. HARNESSING LIGHT BY PLANTS IN THE PROCESS OF PHOTOSYNTHESIS. UTILIZATION OF LIGHT FOR GENERATING THE ELECTRICITY. WIND ENERGY TIDAL ENERGY
8
SOURCES OF LIGHT “ THE SUN WHICH GIVES US MAXIMUM AMOUNT OF LIGHT.”
FLUORESCENE “ A SUBSTANCE EMMITTING LIGHT” LED’S
9
ARTIFICIAL SOURCE S OF LIGHT WHICH IS USED IN OUR DAILY LIFE.
RADIUM IS AN ELEMENT WHICH EMITS LIGHT LASER TECHNIQUE USED IN MEDICAL SCIENCE MAINLY IN SURGERIES
10
CHALLANGES OF LIGHT DUE TO THE DEPLETION OF OZONE LAYER SOME HARMFUL RAYS FROM SUN SUCH AS ULTRAVIOLET RAYS IS DIRECT CONTACTING THE LIVING ORGANISM ON EARTH WHICH IS RESPONSIBLE FOR SKINCANCER & MANY HARMFUL DISEASES . WE MAINLY USE TUBELIGHT ELECTRIC BULBS ETC. WHICH CONSUMPS MORE ELECTRICITY THAN LED’S. THE WORLD IS NOT USING THE SOLAR OR PHOTOVOLTIC CELL AT BIGGER LEVEL FOR GENERATING ELECTRICITY. THESE DAYS ELECTRICITY IS ALSO PRODUCED BY COAL . AND FROM ITS CONSUMPTION THE AMOUNT OF CARBON IS INCREASING .
11
SUGGESTIONS WE SHOULD USE LED’S RATHER THAN ELECTRIC BULBS OR TUBELIGHT BECAUSE IT’S THE FACT THAT “WITH 20% OF THE WORLD’S ELECTRICITY USED FOR LIGHTING IT’S BEEN CALCULATED THAT OPTIMAL USE OF LED LIGHTING REDUCE THIS TO 4%” . MAKE THE IMPROVEMENT IN THE USE OF PHOTOVOLTIC CELLS OR SOLAR CELLS THAT PERMITS SOLAR ENERGY TO PROVIDE UP TO HALF OF WORLD ENERGY WHICH WILL LEAD TO LOW CARBON FUTURE.
Similar presentations
© 2025 SlidePlayer.com Inc.
All rights reserved.