The black hole
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Primary school students in Lithuania watched an activity from friends in Turkey about how black holes form. The students then participated in a role play where they acted out being stars and the formation of a black hole. After the role play, the young learners discussed black holes, stars, and the solar system, expressing interest and happiness in learning about these topics.
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Black Hole By Pranita & Priyanka
Black holes are objects with such strong gravity that not even light can escape. They form when massive stars collapse at the end of their life cycles. Black holes come in different sizes, from stellar-mass black holes formed by collapsed stars to supermassive black holes millions of times the sun's mass found at the centers of galaxies. Though we cannot see a black hole directly, astronomers can detect them through their effects on nearby objects like gases and stars.
Black Holes
Black holes are regions of space with immense gravity formed after giant stars collapse. Anything that crosses the event horizon of a black hole cannot escape its gravitational pull and would appear to an outside observer to freeze at the horizon. At the center of a black hole is a singularity, a point of infinitely dense mass. The Milky Way galaxy likely contains a supermassive black hole at its center called Sagittarius A*, which has a mass over 2.5 million times that of the Sun.
Black Holes
1. The document discusses the history of the idea of black holes, from early proposals by John Michell and Pierre-Simon Laplace to modern understanding through Einstein's theory of general relativity.
2. It describes how black holes are formed when massive stars collapse under their own gravity after exhausting their nuclear fuel. This can cause the star to completely disappear within an event horizon.
3. The document explores how astronomers can observe black holes through their effects on nearby matter like heating gas to high temperatures visible through X-ray and gamma ray emissions, and through the orbital motions of companion stars.
Black holes ITAES
Black holes are regions of space with immense gravitational pull that not even light can escape. There are two main types - stellar-mass black holes formed by supernovae of massive stars, and supermassive black holes likely formed as galaxies formed at their centers, containing millions to billions of solar masses. While black holes cannot be seen directly, astronomers use instruments detecting X-ray emissions and effects on nearby matter to study them. X-rays provide insights into extreme conditions near black holes like accretion disks heating matter to millions of degrees.
Black holes (2)
Black holes are formed when giant stars collapse under their own gravity. If the star's mass is large enough, its gravitational pull becomes so strong that not even light can escape, forming an event horizon around the black hole. Anything that crosses this boundary, including light, cannot escape the black hole. Black holes can also rotate, forming an ergosphere outside the event horizon where the rotation of the black hole drags spacetime itself along. While black holes themselves are invisible, astronomers can detect them through their interaction with nearby matter and the strong gravitational lensing they produce.
Black holes
Black holes are regions of space where gravity is so strong that nothing, not even light, can escape. They form when large stars collapse at the end of their life cycles, compressing their mass into a tiny space. There are several types of black holes including stellar black holes formed by collapsed stars and supermassive black holes found at the center of galaxies containing billions of solar masses. If matter enters a black hole's event horizon, it becomes "spaghettified" as tidal forces stretch and compress it due to the extreme warping of spacetime.
Black holes
1) Black holes are formed when massive stars over 10 times the mass of the Sun collapse in on themselves due to nuclear fusion and strong gravitational forces.
2) We can detect the presence of black holes through the X-rays emitted when matter around the black hole is heated and through gravitational lensing effects on light passing by.
3) If you fell into a black hole, the extreme tidal forces would spaghettify and kill you before you reached the central singularity, and from your perspective you would see the universe compressed into a brief flash of light before destruction.
Meet our Astronomers
This document introduces four astronomers from different countries: Pedro Nunes from Portugal, Kazimieras Simonavicius from Lithuania, Ali Qushji from Turkey, and Christian Doppler from Austria. It provides basic biographical information about each astronomer and their country of origin. Contact information is also listed for students from Portugal and Lithuania who are featured in the document.
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Black Hole By Pranita & Priyanka
Black holes are objects with such strong gravity that not even light can escape. They form when massive stars collapse at the end of their life cycles. Black holes come in different sizes, from stellar-mass black holes formed by collapsed stars to supermassive black holes millions of times the sun's mass found at the centers of galaxies. Though we cannot see a black hole directly, astronomers can detect them through their effects on nearby objects like gases and stars.
Black Holes
Black holes are regions of space with immense gravity formed after giant stars collapse. Anything that crosses the event horizon of a black hole cannot escape its gravitational pull and would appear to an outside observer to freeze at the horizon. At the center of a black hole is a singularity, a point of infinitely dense mass. The Milky Way galaxy likely contains a supermassive black hole at its center called Sagittarius A*, which has a mass over 2.5 million times that of the Sun.
Black Holes
1. The document discusses the history of the idea of black holes, from early proposals by John Michell and Pierre-Simon Laplace to modern understanding through Einstein's theory of general relativity.
2. It describes how black holes are formed when massive stars collapse under their own gravity after exhausting their nuclear fuel. This can cause the star to completely disappear within an event horizon.
3. The document explores how astronomers can observe black holes through their effects on nearby matter like heating gas to high temperatures visible through X-ray and gamma ray emissions, and through the orbital motions of companion stars.
Black holes ITAES
Black holes are regions of space with immense gravitational pull that not even light can escape. There are two main types - stellar-mass black holes formed by supernovae of massive stars, and supermassive black holes likely formed as galaxies formed at their centers, containing millions to billions of solar masses. While black holes cannot be seen directly, astronomers use instruments detecting X-ray emissions and effects on nearby matter to study them. X-rays provide insights into extreme conditions near black holes like accretion disks heating matter to millions of degrees.
Black holes (2)
Black holes are formed when giant stars collapse under their own gravity. If the star's mass is large enough, its gravitational pull becomes so strong that not even light can escape, forming an event horizon around the black hole. Anything that crosses this boundary, including light, cannot escape the black hole. Black holes can also rotate, forming an ergosphere outside the event horizon where the rotation of the black hole drags spacetime itself along. While black holes themselves are invisible, astronomers can detect them through their interaction with nearby matter and the strong gravitational lensing they produce.
Black holes
Black holes are regions of space where gravity is so strong that nothing, not even light, can escape. They form when large stars collapse at the end of their life cycles, compressing their mass into a tiny space. There are several types of black holes including stellar black holes formed by collapsed stars and supermassive black holes found at the center of galaxies containing billions of solar masses. If matter enters a black hole's event horizon, it becomes "spaghettified" as tidal forces stretch and compress it due to the extreme warping of spacetime.
Black holes
1) Black holes are formed when massive stars over 10 times the mass of the Sun collapse in on themselves due to nuclear fusion and strong gravitational forces.
2) We can detect the presence of black holes through the X-rays emitted when matter around the black hole is heated and through gravitational lensing effects on light passing by.
3) If you fell into a black hole, the extreme tidal forces would spaghettify and kill you before you reached the central singularity, and from your perspective you would see the universe compressed into a brief flash of light before destruction.
Meet our Astronomers
This document introduces four astronomers from different countries: Pedro Nunes from Portugal, Kazimieras Simonavicius from Lithuania, Ali Qushji from Turkey, and Christian Doppler from Austria. It provides basic biographical information about each astronomer and their country of origin. Contact information is also listed for students from Portugal and Lithuania who are featured in the document.
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The document provides demographic information about the city of Salzburg, Austria, which has a total area of 270km2 and around 36,500 inhabitants distributed across 17 small towns. It then lists information about the 12 academic units in Salzburg, including the number of operating assistants, teachers, childhood educators, and students at each unit. In total, there are 48 operating assistants, 125 teachers, and 573 students across the 12 academic units.
Cartoons about Deep Sky
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Activities about light pollution
This document summarizes the activities of a Turkish school's Comenius team focused on raising awareness about light pollution. Some of the activities included student contests to design astronaut outfits, build 3D models of space, and construct balloon rocket experiments. Students collaborated with a local university and media outlets to measure and map light pollution in their city. They created educational materials like a dictionary and cartoon explanations of scientists. The goal was to engage students in learning about light pollution and space through hands-on projects and competitions.
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Sun
This document appears to be a presentation about science and astronomy projects conducted by students in Turkey and Europe. It discusses students participating in a mobility program in Lithuania, then researching topics like the sun, solar and lunar eclipses, and making 3D models of the Earth, Moon, and Sun. The presentation continues describing how students studied sundials, making their own and researching famous sundials in Turkey. It concludes with students making experiments about day and night and constructing amateur telescopes.
The Moon
This lesson plan aims to teach primary school students about the phases of the Moon and its effect on tides. Key points include:
- The Moon orbits Earth approximately every 28 days, appearing in different phases as it circles the planet.
- The changing shapes of the Moon are caused by the varying angles between the Moon, Earth, and Sun as the Moon revolves.
- Gravity from the Moon and Sun causes ocean tides on Earth to regularly rise and fall, with stronger tides occurring during full and new Moons.
Eratosthenes
Eratosthenes was a Greek scholar who calculated the circumference of the Earth using shadows from sticks in Alexandria and Syene. He observed that on the summer solstice, a stick in Alexandria cast a shadow while a stick in Syene did not. Knowing the distance between the cities, he calculated the circumference of the Earth to within a few percent of the actual measurement. Eratosthenes made several other contributions including accurately calculating the tilt of the Earth's axis and inventing the leap day.
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This document discusses light pollution, which is excessive or inappropriate artificial light that harms human health and wildlife. It defines light pollution and describes its causes such as inadequate lighting design and incorrect installation. The consequences of light pollution include wasted energy, air and light pollution, and negative impacts on living beings. Wildlife like birds and sea turtles are especially harmed by light pollution disrupting natural behaviors and attracting animals to light sources where they can get injured or die. Prevention methods aim to direct light downward and use efficient bulbs to reduce impacts.
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Nebulae are giant clouds of dust and gas found in space where stars are formed. They can be light years across and look fuzzy in appearance. When the gas and dust in a nebula collapses under its own gravity, it forms hot, dense cores where stars ignite and shine. Some nebulae glow due to radiation from young stars, called emission nebulae. Others reflect the light of stars, known as reflection nebulae. Planetary nebulae are formed when aging stars blow off their outer layers.
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Sun
The document summarizes information about the Sun, including:
1) It is an average star that produces energy through nuclear fusion in its core and contains over 99% of the mass in the Solar System.
2) Significant variations in solar activity like sunspots and solar flares can be seen from day to day and year to year, arising from the bending and twisting of magnetic fields in the Sun's atmosphere.
3) Coronal mass ejections are powerful explosions that can eject large amounts of plasma from the Sun's corona and impact Earth's environment and technology.
Solar system
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If the Moon suddenly vanished:
- Earth's axis would lose stability and wobble dramatically, causing extreme temperature changes and unpredictable seasons.
- Tides would be much smaller, caused only by the Sun, disrupting marine life and coastal ecosystems.
- Earth's rotation would speed up, with day lengths shortening to 8-10 hours and winds of 160-200 km/h sweeping the surface.
- Life on Earth would struggle to adapt to the entirely different environmental conditions without the stabilizing influence of the Moon.
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Vasco tells his mother about a dream where he and his friend Claudia took a rocket trip through space. During their journey to the moon, Claudia points out light pollution on Earth which obscures the night sky in some areas. Light pollution is harmful to animals like turtles and birds. At school, Vasco's class is working on a project about light pollution called "Dive into the Sky" which aims to reduce artificial light at night to see more stars. Vasco is enjoying learning new things through the project.
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The document outlines an integrated English/Astronomy lesson plan for secondary school students about space exploration. It includes vocabulary building, a timeline fill-in-the-blank exercise about major space events, dividing students into groups to write questions about the timeline, and a question/answer activity where students test each other's knowledge in a game format. The lesson aims to teach students about space topics while practicing English vocabulary and questioning skills.
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This document outlines the program for a bilateral meeting between schools in Bulgaria and Lithuania from July 6-10, 2015. The theme of the visit was to develop integrated astronomy and English lessons for primary and secondary schools. The schedule included a guided visit to Vasil Aprilov Primary School in Ruse, Bulgaria, a workshop for teachers to prepare lesson plans, astronomy lessons for different grade levels, visits to local museums, and an excursion to the Rock Monastery of St. Dimitar Basarbovski.
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1. Students and teachers from several European countries participated in a survey to evaluate the Comenius Multilateral Project "Dive in the Sky".
2. The results showed that students found sharing the European project, learning about partner countries, exchanging experiences with foreign students, practicing astronomy and foreign languages to be mostly good or excellent.
3. Teachers rated their relationships with partners, communication, sharing tasks and organizing visits as excellent and found the support from administrators, colleagues and students to be good.
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This lesson plan aims to teach primary school students about the phases of the Moon and its effect on tides. Key points include:
- The Moon orbits Earth approximately every 28 days, appearing in different phases as it circles the planet.
- The changing shapes of the Moon are caused by the varying angles between the Moon, Earth, and Sun as the Moon revolves.
- Gravity from the Moon and Sun causes ocean tides on Earth to regularly rise and fall, with stronger tides occurring during full and new Moons.
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This document discusses light pollution, which is excessive or inappropriate artificial light that harms human health and wildlife. It defines light pollution and describes its causes such as inadequate lighting design and incorrect installation. The consequences of light pollution include wasted energy, air and light pollution, and negative impacts on living beings. Wildlife like birds and sea turtles are especially harmed by light pollution disrupting natural behaviors and attracting animals to light sources where they can get injured or die. Prevention methods aim to direct light downward and use efficient bulbs to reduce impacts.
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The document discusses the sun's positive and negative effects on humans. Positively, the sun provides warmth, energy through photosynthesis, boosts serotonin levels and immunity. However, ultraviolet radiation from the sun can cause skin cancer, sunburns, weaken the immune system, lead to heat stroke and damage eyes and skin over time. While the sun has benefits, prolonged unprotected exposure to its UV rays poses health risks like skin cancer, so protection is recommended to harness its energy safely.
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The document summarizes information about the Sun, including:
1) It is an average star that produces energy through nuclear fusion in its core and contains over 99% of the mass in the Solar System.
2) Significant variations in solar activity like sunspots and solar flares can be seen from day to day and year to year, arising from the bending and twisting of magnetic fields in the Sun's atmosphere.
3) Coronal mass ejections are powerful explosions that can eject large amounts of plasma from the Sun's corona and impact Earth's environment and technology.
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If the Moon suddenly vanished:
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- Tides would be much smaller, caused only by the Sun, disrupting marine life and coastal ecosystems.
- Earth's rotation would speed up, with day lengths shortening to 8-10 hours and winds of 160-200 km/h sweeping the surface.
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Space lesson (8 - 10 grade)
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2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
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8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
ESR spectroscopy in liquid food and beverages.pptx
With increasing population, people need to rely on packaged food stuffs. Packaging of food materials requires the preservation of food. There are various methods for the treatment of food to preserve them and irradiation treatment of food is one of them. It is the most common and the most harmless method for the food preservation as it does not alter the necessary micronutrients of food materials. Although irradiated food doesn’t cause any harm to the human health but still the quality assessment of food is required to provide consumers with necessary information about the food. ESR spectroscopy is the most sophisticated way to investigate the quality of the food and the free radicals induced during the processing of the food. ESR spin trapping technique is useful for the detection of highly unstable radicals in the food. The antioxidant capability of liquid food and beverages in mainly performed by spin trapping technique.
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Ozturkcan, S., Berndt, A., & Angelakis, A. (2024). Mending clothing to support sustainable fashion. Presented at the 31st Annual Conference by the Consortium for International Marketing Research (CIMaR), 10-13 Jun 2024, University of Gävle, Sweden.
The cost of acquiring information by natural selection
This is a short talk that I gave at the Banff International Research Station workshop on Modeling and Theory in Population Biology. The idea is to try to understand how the burden of natural selection relates to the amount of information that selection puts into the genome.
It's based on the first part of this research paper:
The cost of information acquisition by natural selection
Ryan Seamus McGee, Olivia Kosterlitz, Artem Kaznatcheev, Benjamin Kerr, Carl T. Bergstrom
bioRxiv 2022.07.02.498577; doi: https://doi.org/10.1101/2022.07.02.498577
Micronuclei test.M.sc.zoology.fisheries.
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
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留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
8.Isolation of pure cultures and preservation of cultures.pdf
Isolation of pure culture, its various method.
Farming systems analysis: what have we learnt?.pptx
Presentation given at the official farewell of Prof Ken Gillet at Wageningen on 13 June 2024
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The black hole
- 1. THE BLACK HOLE Primary students activity Dive in the Sky Comenius project Lithuania
- 2. THE STUDENTS OF PRIMARY SCHOOL WATCHED TURKEY‘S FRIENDS‘ACTIVITY „HOW A BLACK HOLE FORMS“.
- 3. THEY PLAYED A ROLE PLAY THEMSELVES.
- 4. THE YOUNG LEARNERS WERE TALKING ABOUT A BLACK HOLE, STARS AND THE SOLAR SYSTEM AFTER THE ROLE PLAY.
- 5. WE ARE INTERESTED IN IT. WE ARE HAPPY ! THANK YOU OUR FRIENDS FROM TURKEY !