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pid (proportional integral derivative) code not working(2)
Ask an Expert Topic Forum: Grades 9-12: Physical Science
pid (proportional integral derivative) code not working(2) pid (proportional integral derivative) code not working(2) Hello. I'm doing this project: https://www.sciencebuddies.org/science- ... l-pancreas. I'm trying to write a pid code to finetune the "pancreas" function using the arduino coding language (C++). The code is as follows: #include <PID_v1.h> // Define constants const double setpoint = 700; // Setpoint value // Define PID parameters const double Kp = 1.0; // Proportional… Read more
Humidifier mist sprayer
Ask an Expert Topic Forum: Grades 9-12: Physical Science
Humidifier mist sprayer Humidifier mist sprayer I made a simple humidifier at home, will this create mold in the house? Re: Humidifier mist sprayer Hello, Can you tell us a little bit more about your particular science experiment so we can better help? Thanks, Audrey Read more
The Origin of Earths' Water...(Look Down)
Ask an Expert Topic Forum: Grades 9-12: Life, Earth, and Social Sciences
The Origin of Earths' Water...(Look Down) The Origin of Earths' Water...(Look Down) [size=150][/size][size=150][/size]I I have been researching the birth of our planet and Solar System and it has become apparent that the accepted theory of how Earths water arrived was strictly by asteroids, comets and meteors directed here by Jupiter. The problem of the surface being molten early in Earths construction and the physics of water and extreme heat suggested any water here up to the point the… Read more
plant growth rate
Ask an Expert Topic Forum: Grades 6-8: Life, Earth, and Social Sciences
plant growth rate plant growth rate Hello, I wanted to plant so plants in my garden but I need plants that grow in a week or 2 weeks. If you have any plant suggestions please tell me. Also can you please make sure that the plant suggestions are easy to find and can be found anywhere. Thank u (also many thanks for making this website it really helps me with my projects and sci fair display boards) :lol: :lol: :lol: :lol: :lol: :) :) :) :) :) Re: plant growth rate Hi… Read more
Exploring DNA Damage: Ultraviolet Rays on Yeast (Clarification)
Ask an Expert Topic Forum: Grades 9-12: Life, Earth, and Social Sciences
Exploring DNA Damage: Ultraviolet Rays on Yeast (Clarification) Exploring DNA Damage: Ultraviolet Rays on Yeast (Clarification) I read the procedure for growing yeast colonies and shining UV rays on them. Should I be growing BOTH the UV sensitive yeast cultures and the wild-type yeast cultures simultaneously using the same procedures? Thanks for the clarification. [Administrator note - project directions:… Read more
Semi-Artificial body system
Ask an Expert Topic Forum: Grades 6-8: Life, Earth, and Social Sciences
Semi-Artificial body system Semi-Artificial body system Hi, I am doing a science project to make a semi-artificial body. I found a lot of issues in my project and fixed them. But I'm not sure if there are more issues I couldn't find (and I also don't know if it's possible!). Can anyone help me identify issues in my project, or else a person will die. Topic: Semi-Artificial Body Things being added at surgery:  2 Stm32 nucleo boards Fresenius 4008s blood pump 2 batteries Wires, tubes,… Read more
Ice and Salt
Ask an Expert Topic Forum: Grades 6-8: Physical Science
Ice and Salt Ice and Salt Hi, I have a question about ice and salt cuz I have this project about it. My questions are below and I hope you are able to answer them. 1) how does salt melt ice 2) is it a chemical reaction when the salt and ice interact if so what is the molecules used and how do they interact with each other 3) What are the molecules and make salt and what are the molecules that make ice 4) If I add a lot of salt to the ice will it melt faster I hope you are able to… Read more
About image after slit
Ask an Expert Topic Forum: Grades 9-12: Physical Science
About image after slit About image after slit what factors affect the vividness and same (shape, size) of the image after the light pass through the slit Read more
About image after slit
Ask an Expert Topic Forum: Grades 9-12: Physical Science
About image after slit About image after slit what factors affect the vividness and same (shape, size) of the image after the light pass through the slit Read more
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