Why Light Matters

In order to understand the importance of light to our lives, all one has to do is close the eyes and see what darkness feels like.

Understanding why light matters requires understanding light itself and the best way to do that is through photonics which is the technology and science of generating, detecting photos. All technologies of our lives today rely on light technologies.
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Photonics

This is the science of light and the technology of generating, detecting and controlling photos and light waves. Understanding the features of photons and waves can help us in exploring the universe, curing diseases, solving crimes and many other ways. For years, scientists have been trying to understand light, and this continues. There have been milestones on this such as Newton discovery that white light actually has different colours of light, the discovery of Max Planck and Albert Einstein that light is a particle as well as a wave. This duality was later confirmed with experiments. Outside of the electromagnetic spectrum which we cannot see with the naked eye, invisible and visible light waves exist IN our daily lives. Whether it is consumer electronics such as barcode scanners, remote control, DVD player, etc. as well as in medical instruments, entertainments, manufacturing industry, and telecommunications, light exists everywhere. Today, scientists, technicians, and engineers are conducting several cutting-edge research works on photonics.

Energy

There are usually two approaches when thinking about energy and light. One is to talk about creating fusion through the use of lasers in controlled conditions while the other is solar energy. Solar energy represents an enormous source of energy in the near future as it allows energy produced by the sun to be converted to electricity and thermal energy. It is gaining grounds in different parts of the world today, including Australia, and many more will embrace it in due time. Projects are seeking to make this energy more sustainable while reducing the effects of global warming and pollution. Solar energy is applied in different ways such as Architecture and urban planning, Agriculture and horticulture, transportation, solar thermal, water recycling and desalination, etc.
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Economic Impacts

Businesses and corporate organisations that operate in this field are currently solving substantial social challenges like energy generation, and efficiency, climate change, healthy ageing, security, etc. the light-based technologies industries continue to expand with its GDP increasing significantly within a short period of time.

Light in Built Environment

According to the International Energy Agency, about 20% of electricity consumption globally comes from lighting. This shows how important light is to our society and people. It provides security and safety, enhances architecture, makes education more accessible and improves the quality of life generally. Most times, light is noticed more in its absence, and with the constant development of cities and urbanisation, it is necessary to find innovative and more energy-efficient lighting designs.
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