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Ask an Expert Topic Forum: Grades 6-8: Physical Science

Detect litter with machine learning Detect litter with machine learning Hello, I'm currently doing a science fair project on "detect litter with machine learning." I've gotten all my images for my project and done all the steps correctly however whenever i input my video name into the code the output isn't working. What I mean is that the output doesn't show boxes on the videos as it should be and instead shows no detections. I'm hoping someone could reach out soon. Thank you Moderator… Read more

How can I measure human reaction time accurately without lab equipment?

Ask an Expert Topic Forum: Grades 6-8: Physical Science

How can I measure human reaction time accurately without lab equipment? How can I measure human reaction time accurately without lab equipment? Hi everyone, I’m working on a small science project about human reaction time, and I don’t have access to professional lab tools. I’m wondering what the most reliable low-tech methods are (ruler drop test, phone apps, browser tests, etc.) and how to design the experiment so the results are still meaningful. What are the most common mistakes in… Read more

Re: How can I measure human reaction time accurately without lab equipment?

Ask an Expert Topic Forum: Grades 6-8: Physical Science

How can I measure human reaction time accurately without lab equipment? How can I measure human reaction time accurately without lab equipment? Hi everyone, I’m working on a small science project about human reaction time, and I don’t have access to professional lab tools. I’m wondering what the most reliable low-tech methods are (ruler drop test, phone apps, browser tests, etc.) and how to design the experiment so the results are still meaningful. What are the most common mistakes in… Read more

Exploring Visual Fatigue and Light Emission in Digital Research

Ask an Expert Topic Forum: Grades K-5: Life, Earth, and Social Sciences

Exploring Visual Fatigue and Light Emission in Digital Research Exploring Visual Fatigue and Light Emission in Digital Research When students and mentors engage in complex projects on Science Buddies, they often spend a significant amount of time conducting literature reviews and analyzing data on digital displays. As we dive deeper into the physics of light and the biology of human vision, a recurring question emerges: How does prolonged exposure to high-contrast digital interfaces affect… Read more

Request for Interview on STEM Renewable Energy Project Guidance

Ask an Expert Topic Forum: Grades 6-8: Physical Science

Request for Interview on STEM Renewable Energy Project Guidance Request for Interview on STEM Renewable Energy Project Guidance Hello Science Buddies Community, I’m currently working on a middle school STEM project about renewable energy and would love to gain insights from someone experienced in this field. Would anyone be available for a brief interview (10–15 minutes) to discuss practical tips, common challenges,[URL=https://monkeymartonline.org/online][color=#FFFFFF][size=1]Monkey… Read more

The Build your own gel electrophoresis chamber science experiment

Ask an Expert Topic Forum: Grades 9-12: Physical Science

The Build your own gel electrophoresis chamber science experiment The Build your own gel electrophoresis chamber science experiment I have now attempted this experiment twice, the first time, the box put it in was a little big and was a failure on my part. The second time I did it with a normal size soap box, but both times, a weird cloudy film would come over top of the box and would kind of bubble so I couldn't see the colors. Now I have two things that I think it might be. 1: In the… Read more

Aerodynamic problems!!!

Ask an Expert Topic Forum: Grades 6-8: Physical Science

Aerodynamic problems!!! Aerodynamic problems!!! Hi!! This might be my last year doing the science fair! Before I state my problem, I would like to express my gratitude to Science Buddies for their assistance every year. Really appreciate it! Anyway, I have a problem. I am doing the Frisbee Aerodynamics project, and it states I have to do two of positive, and two of negative, and I have to do them each 10 times. Am I supposed to have 50+ trials? If not, how many am I supposed to have in total?… Read more

Arduino hot glue question

Ask an Expert Topic Forum: Grades 6-8: Physical Science

Arduino hot glue question Arduino hot glue question Can I use hot glue with Arduino components, and then take it off again, or is it permanent? ( for example, to attach a homemade wheel to a motor. ) :?: :?: :? -Seabass Re: Arduino hot glue question Hi - yes, it's generally safe to use hot glue with electronic components. If you use a lot it may be messy or more difficult to peel off, but it's not going to hurt anything. Re: Arduino hot glue question Thank you, because a lot of… Read more

Trouble with BlueBot

Ask an Expert Topic Forum: Grades 6-8: Physical Science

Trouble with BlueBot Trouble with BlueBot Posted on behalf of student Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Robotics_p028/robotics/obstacle-avoiding-robot ----------------------------------------------------- I built the robot and worked but it is not walking forward instead it is turning around itself [attachment=2]IMG_6155.jpeg[/attachment][attachment=1]IMG_6156.jpeg[/attachment][attachment=0]IMG_6157.jpeg[/attachment] Re: Trouble with BlueBot So… Read more

this is my new account

Ask an Expert Topic Forum: Grades 9-12: Physical Science

this is my new account this is my new account :D Read more

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