Ask an Expert (Page 11)

Vegetables and Fruit Battery

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

Vegetables and Fruit Battery Vegetables and Fruit Battery What causes fruits and vegetables to power a battery. :D Moderator note: Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Energy_p010/energy-power/potato-battery Re: Vegetables and Fruit Battery Hi! Fruits and vegetables can “power” a battery because they’re wet and full of ions (salts/acids), so they work like an electrolyte (a liquid that lets charges move). When you stick two different metals in… Read more

Build a ultrasonic levitator

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

Build a ultrasonic levitator Build a ultrasonic levitator Hi All, Did anyone else try building this before. Our experiment worked for few seconds and stopped after that. We have tried to re-assemble the model to make it work but no hope so far. Reaching our deadline soon need serious help Moderator note: Project https://www.sciencebuddies.org/science-fair-projects/project-ideas/Elec_p121/electricity-electronics/ultrasonic-levitator Re: Build a ultrasonic levitator Hi - I replied to your… Read more

Reversed Breadboard

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

Reversed Breadboard Reversed Breadboard I am currently trying to copy a project from this website and my breadboard is reversesd from the one on the website, what would I do to get the same outcome? Re: Reversed Breadboard Hi there, Most breadboards should be standard, but if your breadboard is "reversed", you should switch all positive pins for negative pins and vice versa in both of the two-column dot regions of the breadboard(the + and -). Hope this helps, and if you need further… Read more

Chemistry of Ice Cream

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

Chemistry of Ice Cream Chemistry of Ice Cream Posted on behalf of student: Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/FoodSci_p013/cooking-food-science/chemistry-of-ice-cream-making (see "Optional: Applying Your Results to Make Your Own Ice Cream" step 1) --------------------------- I was wondering for the part where you make ice cream if you need to use half and half And whipping cream I wanted to know if I could use 2% milk instead because this isn’t a part… Read more

Question about Build a Robot Hand activity

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

Question about Build a Robot Hand activity Question about Build a Robot Hand activity Type your question below and then press Submit! what are the links of the sources used for the project ------------------------------------- Leave this to help the Experts: The activity can be viewed at: [url=https://www.sciencebuddies.org/stem-activities/build-a-robot-hand]Build a Robot Hand[/url] Re: Question about Build a Robot Hand activity This activity was developed by staff scientists at Science… Read more

Inhibition of amalyase enzyme activity by feenugreek

Ask an Expert Topic Forum: Grades 6-8: Life, Earth, and Social Sciences

Inhibition of amalyase enzyme activity by feenugreek Inhibition of amalyase enzyme activity by feenugreek I am very interested to work on type II diabetes and worked thru the letarature alot. So, I started working on how to slow down the alpha amylase breakdown by using natural inhibitors like fenugreek that found to have bioactive compounds like Trigonelline, Diosgenin, 4-Hydroxyisoleucine that helps with the inhibition of digestive enzymes like amylase and glucosidase. I… Read more

IB Chem - Spectroscopy

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

IB Chem - Spectroscopy IB Chem - Spectroscopy Why is a "discrete line spectrum" instead of a continuous spectrum produced when elements' excited electrons return to lower energy states? Also, what specifically is a discrete line spectrum and a continuous spectrum? Re: IB Chem - Spectroscopy Your questions suggest that this is a homework assignment! The Science Buddies Ask the Expert forums do not help with homework. These forums are for students in grades K-12 who are doing hands on… Read more

science fair project revolving around gut bacteria and chemotherapy

Ask an Expert Topic Forum: Grades 9-12: Life, Earth, and Social Sciences

science fair project revolving around gut bacteria and chemotherapy science fair project revolving around gut bacteria and chemotherapy Hello! I am a high school student who is working on a science fair project. I am trying to answer a question about how chemotherapy drugs affect gut bacteria. I am restricted to a BSL-1 zone, so I can only use my school's labs. I am going to be using E coli k12 and Bacillus subtilis bacteria strains. I was originally going to be ordering cisplatin for the… Read more

Fun Or Frustrating

Ask an Expert Topic Forum: Grades 6-8: Life, Earth, and Social Sciences

Fun Or Frustrating Fun Or Frustrating I can't find any good games for the Fun Or Frustratiing project. Can anyone suggest an idea :?: Moderator note: Project: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Games_p010/video-computer-games/fun-or-frustrating https://www.sciencebuddies.org/science-fair-projects/project-ideas/HumBeh_p051/human-behavior/gender-responses-to-frustration Re: Fun Or Frustrating You could use simple but challenging games like Tetris, Angry… Read more

Detailed AI / Deep Learning Research Interview Questions at Top Tech Companies

Ask an Expert Topic Forum: Interview Requests

Detailed AI / Deep Learning Research Interview Questions at Top Tech Companies Detailed AI / Deep Learning Research Interview Questions at Top Tech Companies I’m interested in learning more about the specific types of questions asked during interviews for AI / Deep Learning Research Scientist (or closely related research roles) at major tech companies such as FAANG and similar organizations. I’ve searched online, but most resources only provide high-level or generic descriptions without… Read more

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