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Fourth Grade Videos (1,202 results)

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Animation of the 2009 collision between Iridium 33 and Cosmos 2251. The blue represents Iridium 33 and the orange is Cosmos 2251. The lines are their paths, solid dot is the satellite, and arrows are the resulting debris after the collision. For code to simulate your own collisions: https://www.sciencebuddies.org/science-fair-projects/project-ideas/SpaceEx_p057/space-exploration/satellite-collision-tracking#summary Science Buddies also hosts a library of instructions for over 1,500 other…
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Have you ever wondered if your indoor air quality at home is safe? What about your school or grocery store? Investigate using an air quality monitor, test your indoor vs. outdoor air quality, and see how your daily habits improve or worsen your air quality indoors. Interested in doing this science experiment yourself? Check out our written instructions here:…
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Learn about watsonx: https://ibm.biz/BdvxRb Can't see the random forest for the search trees? What IS a "random forest" anyway? IBM Master Inventor Martin Keen explains what random forests are, how to set them up, and how they can help you with all sorts of classification problems in a wide variety of applications such as finance, medicine, and economics. #DataMigration #DataScience #DataMining #AI
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Geofences are virtual borders around a physical location that can be used to trigger events when a user enters or exists the region. This video answers the most commonly asked questions about geofencing, how it works, accuracy, and viable use cases. Check out are website for more information: https://proximi.io/geofence-complete-guide-geofencing/ Sign up for a free proximi.io account to start using the platform and mobile…
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This video shows you how to create a joint detection model that can detect whether someone performed an exercise properly. Written instructions and example code are available on the Science Buddies website: https://www.sciencebuddies.org/science-fair-projects/project-ideas/ArtificialIntelligence_p027/artificial-intelligence/exercise_form?ytid=PenQ1zuphJU&ytsrc=description 0:00 Introduction 0:27 Setting Up the Google Colab Environment 1:12 Importing Libraries 2:16 Collecting the Data 4:55…
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In 2018, Facebook released its time series algorithm - prophet. But what is the prophet algorithm? Let's find out... in under 5 minutes!
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Ever noticed that parks are cooler than streets on hot days? Different surfaces absorb heat differently. In this science project, we'll use temperature and satellite data to identify urban heat islands in a city and investigate how surface types affect temperature. 0:00 Introduction 0:39 Step 1 - Set up your ArcGIS Online Account 0:48 Step 2 - Save your map and give it a title 1:18 Step 3 - Add your data layers 1:49 Step 4 - Explore and understand your data 2:41 Step 5 - Decide on your…
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Join #TeamSeas at https://TeamSeas.org (make sure you join the MarkRober team when donating) $1 is one less pound of trash in the Ocean. We need to remove 30,000,000 lbs by the end of the year!! I started a company called CrunchLabs where we build a toy together and then I teach you all the juicy physics for how it works. So if you want to learn to think like an engineer and have really fun time doing it, check out the current promotion where you get 2 FREE boxes at…
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Decision trees are part of the foundation for Machine Learning. Although they are quite simple, they are very flexible and pop up in a very wide variety of situations. This StatQuest covers all the basics and shows you how to create a new tree from scratch, one step at a time. NOTE: This is an updated and revised version of the Decision Tree StatQuest that I made back in 2018. It is my hope that this new version does a better job answering some of the most frequently asked questions people…
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Source & Design files: https://hackaday.io/project/191181-electromechanical-refreshable-braille-module Like the project? buy me a coffee!☕: https://www.buymeacoffee.com/vjvarada The big drawback to refreshable braille devices has always been their cost. The loose rule of estimation applied to these products has translated into something like $100 to $150 per braille cell. A 40-cell display, in other words, may cost $4,000 to $6,000, while an 80-cell model will cost $8,000 to $12,000. And so…
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