Smog is a combination of smoke and fog that's created when pollutants and exhaust gases from human activities mix with air. The main ingredients in smog are nitrogen oxides, volatile organic compounds (VOCs), and sunlight.
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Nitrogen oxides: These can come from vehicle exhaust fumes, plants that use coal, and manufacturing buildings.
Volatile organic compounds (VOCs): These can come from petrol, cleaning products, and paints.
Sunlight: The visible or ultraviolet energy from sunlight is absorbed by nitrogen oxides, which then form nitric oxide (NO) and free oxygen atoms (O). These oxygen atoms then combine with molecular oxygen (O2) to form ozone (O3).
Other factors that affect smog formation include:
Weather and climate
Smog is more difficult to get rid of in cities in valleys or during windless weather.
Inflow smog
Pollutants can spread to other areas, making one place cleaner and another more polluted.
Smog can be very dangerous for health, and can cause respiratory irritations, permanent lung damage, and asthma.
To reduce smog, you can:
Drive less, walk, bike, carpool, or use public transportation.
Take care of your car by getting regular tune-ups, changing the oil, and inflating the tires.
Fuel up during cooler hours of the day.
Avoid products that release high levels of VOCs.
Avoid gas-powered yard equipment.
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Reflect Orbital is a California-based startup that aims to sell sunlight and energy after the sun has set. They're doing it by sending a big mirror into space, aboard a satellite that's able to point said mirror in such a way to reflect the sun's light onto a precise location on Earth.
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Oncolytic virotherapy is a targeted cancer treatment that uses viruses to infect and destroy cancer cells:
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➡️ How it works
Oncolytic viruses infect and kill cancer cells, releasing new viruses that destroy the remaining tumor. The dying cancer cells also release tumor antigens that the immune system can recognize, triggering an immune response against the cancer.
➡️ Benefits
Oncolytic virotherapy can make it easier to kill tumor cells with chemotherapy and radiation therapy. It can also be used in patients who are ineligible for other systemic therapies, such as those with autoimmune disease or organ transplants.
➡️ Side effects
The most common side effects are flu-like symptoms, such as fever, chills, muscle aches, fatigue, nausea, diarrhea, vomiting, and headache. These side effects are usually transient and tend to go away over time.
➡️ Future research
Researchers are exploring ways to modify oncolytic viruses to improve their safety and target fidelity, and to equip them with other capabilities.
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The NASA ISRO Synthetic Aperture Radar mission is a joint project between @nasa and @isro.dos to co-develop and launch a dual-frequency synthetic aperture radar on an Earth observation satellite in 2025. The satellite will be the first radar imaging satellite to use dual frequencies.
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🎊 100,000 Subscribers! 🎉 Thank you all for making this incredible milestone possible! Your support has been amazing, and today, I’m thrilled to share this moment with you as we unbox the Silver Play Button together. Here’s to many more milestones ahead—thank you, Simplify Ultra family! #tamil #youtube #youtubechannel #simplifyultra
Merlin is a family of rocket engines developed by @spacex They are currently a part of the Falcon 9 and Falcon Heavy launch vehicles, and were formerly used on the Falcon 1. Merlin engines use RP-1 and liquid oxygen as rocket propellants in a gas-generator power cycle.
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Royal jelly is a honey bee secretion that is used in the nutrition of larvae and adult queens. It is secreted from the glands in the hypopharynx of nurse bees, and fed to all larvae in the colony, regardless of sex or caste. During the process of creating new queens, the workers construct special queen cells.
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Graviton, A hypothetical quantum object that is thought to be the carrier of the gravitational field. It is analogous to the well-established photon of the electromagnetic field. Gravitons, like photons, would be massless, electrically uncharged particles traveling at the speed of light.
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They can survive punishing heat, freezing cold, ultraviolet radiation and even outer space. They do this by becoming dried-out little balls, called "tuns," and almost stopping their metabolism and reviving only when conditions are better.
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Polymetallic nodules are found in both shallow (e.g. the Baltic Sea) and deeper waters (e.g. the central Pacific), even in lakes, and are thought to have been a feature of the seas and oceans at least since the deep oceans were oxygenated in the Ediacaran period over 540 million years ago.
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Gastroparesis is often caused by damage to nerves that stimulate the stomach muscles to contract. These large and small nerves play an important role in controlling the muscles in the stomach that are involved in moving food out of the stomach to the small intestine.
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