The Ultraviolet World
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The document discusses ultraviolet (UV) light and its properties, including that it is a type of light with higher frequency than visible light. Many animals like bees can see UV light due to specialized eye structures. The document then discusses how flowers and bees have co-evolved patterns involving UV light that aid pollination. Finally, it proposes a project to create hidden images using yellow flower petals that are only visible under UV light.
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Ultraviolet (UV) rays come from the sun and other sources like tanning beds. There are different types of UV rays based on their energy levels, with higher-energy rays being more damaging. UV rays are mainly absorbed by skin and can cause sunburn, skin damage, and skin cancer over time. People are exposed to UV rays from the sun as well as some artificial sources. While UV rays have some benefits, overexposure is best avoided through clothing, sunscreen, and limiting time in the sun or tanning beds.
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Ultraviolet (UV) rays are invisible rays that come from the sun and can burn skin, hair and eyes if exposed too much. While harmful in excess, UV rays serve useful purposes like enabling vitamin D production and use in sterilization. Prolonged sun exposure increases skin cancer risk, so protection like sunscreen, clothing and sunglasses is recommended. UV rays constitute about 10% of sunlight and are both beneficial yet dangerous if not properly safeguarded against.
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- Visible light is important for plants through photosynthesis and for humans by enabling neurotransmitter synthesis and preventing depression.
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Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
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The Ultraviolet World
- 1. The Ultraviolet World Design Frontiers in Biology and Materiality NYU ITP Spring 2010 Daniel Tsadok
- 2. General Color Concepts Something appears to us to have color because it emits or reflects certain frequencies of light. Light is a kind of energy at a certain frequency. Our eyes are sensors that can detect a narrow range of frequencies (visible light).
- 3. Ultraviolet Concepts Ultraviolet (UV) light includes a range of frequencies of light, just like red, green, and blue. The sun emits UV light. Humans just happen not to be able to see UV. Many non-mammals can see UV light, including bees, due to UV-sensitive cones in their eyes.
- 4. Ultraviolet Concepts UV is a higher frequency (more energy) than visible light. Higher frequencies of UV can be dangerous (DNA is susceptible to UV damage). “Black Lights” work by emitting low-frequency UV light, which is absorbed by materials that re-emit the energy at a lower, visible frequency.
- 5. Ultraviolet in Nature Bees and flowers co-evolved. Bees need pollen, and flowers rely on bees to spread the pollen to reproduce. Bees can see UV, so many flowers evolved to produce patterns visible in UV. It is only due to modern technology that we are aware of these patterns.
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