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  1. Walk through the full process to learn how supermassive black holes convert fuel to produce bipolar jets, discover when star formation starts and stops, and examine a diagram of the processes at work. Find images, videos, activities, and other learning materials about black holes.

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    Each working group will need (figure 3): 1. A light elastic bandage used for muscular injuries (e.g. Tubifix, sold in chemists’ shops), the largest ones available (used for the thorax) 2. A small marble 3. A very heavy ball (such as those used in games of boules, bocce or pétanque) 4. A pair of sharp scissors.

    Cut a piece of elastic bandage about 40 cm long. If it is tubular, you will need to cut it open on one side.
    Ask several students to stretch the bandage horizontally until it becomes taut, to represent two-dimensional space.
    Place the marble on the bandage, and make it roll across the surface of the bandage. Its path should be a straight line, similar to that of a light ray travelling through space.
    Place the heavy ball on the bandage, and you will see how it deforms the fabric of space. Space becomes curved around the heavy mass.
    What happens when you decrease the speed of the marble? Why? When the speed of the marble is high enough, the marble has enough energy to escape the gravity of the black hole. However, if the speed...
    What happens when you use a heavier large ball? What about a heaver marble (figure 6)? Because more massive objects create a stronger gravitational force, in both cases you will need to throw the m...
    How would you be able to tell if there is a black hole somewhere by observing the motions of the stars? If a black hole becomes massive enough, stars that pass nearby will become trapped in its gra...
  3. Aug 13, 2018 · Here, at astroEDU, we’ve compiled a list of educational activities for you to teach black holes to students 6 years and older, from the extreme gravity of black holes, to how they are...

    • Astroedu
  4. Why is it important to study black holes? What is there to be learned from the EHT observations? As a scientific collaboration, the aim of the EHT is not only to prove the existence of black holes, but also to understand the physics of black holes and their surrounding environments.

  5. Sep 20, 2021 · Scientists think smaller black holes form when dying stars explode. How the largest ones form is still unknown. But they all share one unusual feature. It’s the pull of their gravity—a force that attracts objects toward one another. A black hole has gravity so strong, even light can’t escape.

    • Jennifer Barone
  6. Feb 15, 2020 · The fact that black holes are too far away to wipe out humanity has a lot of other benefits too. We can analyse them, for example, and learn about incredible scientific phenomena in these obscure dead stars. Black holes may have created the Universe, according to theoretical physicist Raj Pathria.

  7. Black holes are some of the most fascinating and mind-bending objects in the cosmos. The very thing that characterizes a black hole also makes it hard to study: its intense gravity. All the mass in a black hole is concentrated in a tiny region, surrounded by a boundary called the “event horizon”.

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