1,000 years from now, the length of a solar day on Earth will increase by 1/30 of a second. Leap seconds will have to be added multiple times during the month.

30,000 years from now, Niagara Falls will have eroded the remaining 32 km to Lake Erie and will cease to exist.

100,000 years from now, the proper motion of stars across the celestial sphere, which results from their movement through the Milky Way, renders many of the constellations unrecognizable.

500,000 years from now, Earth will likely have been hit by an asteroid of roughly 1 km in diameter, assuming that it cannot be averted.

1 million years from now, Betelgeuse will have exploded in a supernova, making it visible on Earth in daylight.

50 million years from now is the earliest estimated time for Earth to naturally replenish its fossil fuel reserves.

180 million from now, due to the gradual slowing down of Earth's rotation, a day on Earth will be one hour longer than it is today.

250 million years from now, the west coast of North America, the coast of California will collide with Alaska.

1.2 billion years from now is the high estimate until all plant life dies out.

2 billion years from now is the first close passage of the Andromeda Galaxy and our Milky Way galaxy.

5.4 billion years from now, the sun begins to evolve into a red giant, engulfing the Earth and moon.

150 billion years from now, the Universe's expansion causes all galaxies beyond the former Milky Way's Local Group to disappear beyond the cosmic light horizon, removing them from the observable universe.

1 trillion years from now, star formation ends in galaxies as galaxies are depleted of the gas clouds they need to form stars.

120 trillion years from now, stars in the universe will have exhausted their fuel.

In One gazillion, quadrillion, trillion, billion, million, thousand years from now - we start all over again.

#astronomy​​​ #astrophotography​​​

Isoler en variabel i en ligning

Educational video for children to learn about the eighth of the Sustainable Development Goals (SDGs), decent work and economic growth. A job is any activity that is performed in exchange for a wage or salary. Thanks to work, we are able to provide answers to our needs as a society. When we talk about decent work, we mean that all people have a decent job, in which fundamental rights are respected without discrimination of any kind and that generates an income that is fair in relation to the effort made. Decent work is the way out of poverty, since many people are unemployed and many others, even if they have a job, do not receive a sufficient enough salary to cover their basic needs and therefore struggle to have a decent life. For this reason, the United Nations considers access to decent work and economic growth as one of its Sustainable Development Goals.

This video is a very useful and interesting resource for children. It is perfect for teaching what the Sustainable Development Goals are. It is an excellent video for primary education.

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Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/trigonometry/trig-function-graphs/trig_graphs_tutorial/e/amplitude-of-trig-functions?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry

Watch the next lesson: https://www.khanacademy.org/math/trigonometry/trig-function-graphs/trig_graphs_tutorial/v/we-amplitude-and-period?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry

Missed the previous lesson?
https://www.khanacademy.org/math/trigonometry/unit-circle-trig-func/inverse_trig_functions/v/inverse-trig-with-model?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry

Trigonometry on Khan Academy: Big, fancy word, right? Don't be fooled. Looking at the prefix, tri-, you could probably assume that trigonometry ("trig" as it's sometimes called) has something to do with triangles. You would be right! Trig is the study of the properties of triangles. Why is it important? It's used in measuring precise distances, particularly in industries like satellite systems and sciences like astronomy. It's not only space, however. Trig is present in architecture and music, too. Now you may wonder...how is knowing the measurement and properties of triangles relevant to music?? THAT is a great question. Maybe you'll learn the answer from us in these tutorials!

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

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WEBSITE: http://www.teachertube.com Divisibility Rule of 4

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A Salvo is a military term that stands for the simultaneous firing of several guns, as opposed to gunfire, where all guns fire independently once an order is given.

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A finely tuned example demonstrating how the arc length formula works.

Watch the next lesson: https://www.khanacademy.org/math/ap-calculus-bc/bc-applications-definite-integrals/bc-arc-length/v/parametric-curve-arc-length?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusBC

Missed the previous lesson? https://www.khanacademy.org/math/ap-calculus-bc/bc-applications-definite-integrals/bc-arc-length/v/arc-length-formula?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusBC

AP Calculus BC on Khan Academy: Learn AP Calculus BC - everything from AP Calculus AB plus a few extra goodies, such as Taylor series, to prepare you for the AP Test

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

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In this lesson, you will learn how to solve percent problems using the fraction representation of a percent. A percentage literally means "per 100", so every percent can be expressed as a fraction. This fraction representation can be used to calculate percentages of numbers. Here we multiply by the fraction to obtain the percent of the number, and discuss what the percent means in real life examples.

Welcome to Multiplying Whole Numbers and Fractions with Mr. J! Need help with how to multiply a whole number and a fraction? You're in the right place!

Whether you're just starting out, or need a quick refresher, this is the video for you if you're looking for help with how to multiply whole numbers by fractions and how to multiply fractions by whole numbers. Mr. J will go through multiplying whole numbers and fractions examples and explain the steps of how to multiply a whole number and a fraction.

About Math with Mr. J: This channel offers instructional videos that are directly aligned with math standards. Teachers, parents/guardians, and students from around the world have used this channel to help with math content in many different ways. All material is absolutely free.

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Hopefully this video is what you're looking for when it comes to multiplying whole numbers and fractions.

Have a great rest of your day and thanks again for watching!

Learn about retelling a story and other reading comprehension lessons in the FREE Khan Academy Kids app! https://go.learn.khanacademy.o....rg/khanacademy/YouTu

In this video, help Peck retell the story of Goldilocks by putting key details in order with first, next, and last.

Visit us at http://www.khankids.org to learn more about Khan Academy Kids, a free educational app for preschool through 2nd grade available on Apple, Google Play, and Amazon app stores.

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Detrivores are heterotrophs that feed on decaying organic matter in an ecosystem. Common examples of detrivores include worms and millipedes. Without decomposers and detrivores, the earth would be covered up with dead organisms.