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Ask an Expert Topic Forum: Grades 9-12: Physical Science
Electro Culture Electro Culture Hello, I'm planning on conducting an experiment regarding electro culture for a few crops. My only issue is that the articles I've seen regarding the topic fail to mention how to go about creating a "mild electric current" for the crops. I'm wondering if anyone here can provide some information on how to set up such a current and what is meant by "mild." Is there a particular number of volts that can be classified as "mild" in this… Read more
Ask an Expert Topic Forum: Interview Requests
Сhance Сhance Not sure what games you can play? Hi, I think you should check out the casino, nowhere else can you get as much excitement as here, so I suggest you check out the casino and this site as it's the best in with a ton of the best slots [url=https://mostbetaz.info:11eg88if]mostbet casino, and I would suggest playing some online games like blackjack, my favorite game, and here you have a choice of guys. Re: Сhance Hi. It really doesn't matter what kind of gambling you like… Read more
Ask an Expert Topic Forum: Grades 6-8: Physical Science
Question about Build a Paper Rocket activity Question about Build a Paper Rocket activity Type your question below and then press Submit! Hi there, I tried to change in my paper rocket's design by increasing the fins... At the begining I added to boosters and watched the performence then I tried to add more fins but nothing was happened.... I expected more time would be consumed to the rocket to reach the same point as a result of resisting gravity because of the fins but I did not Notice… Read more
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Ask an Expert Topic Forum: Grades K-5: Physical Science
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Ask an Expert Topic Forum: Grades 9-12: Physical Science
Feasibility of nanoparticle + algae project Feasibility of nanoparticle + algae project Hello! I was considering doing a project about nanoparticle toxicity on algae. Specifically, I wanted to analyze the difference between aggregated and nonaggregated nanoparticles (deciding between ZnO and TiO2. Maybe I'll do both!). Some sources I have read indicate that nanoparticle aggregation can increase toxicity, while others say that aggregation makes NPs less toxic. I also found a source that… Read more
Ask an Expert Topic Forum: Grades 9-12: Physical Science
Nuclear chain reaction and slow-speed neutrons Nuclear chain reaction and slow-speed neutrons I want to know why the nuclear chain reaction happens well in slow-speed neutrons. When uranium-235 is used as a nuclear fuel, the fission cross-sectional area of uranium is said to be larger as the energy of the colliding neutron decreases. Then why does the lower the energy, the bigger it gets? Read more
Ask an Expert Topic Forum: Grades 9-12: Physical Science
Nuclear chain reaction and slow-speed neutrons Nuclear chain reaction and slow-speed neutrons I want to know why the nuclear chain reaction happens well in slow-speed neutrons. When uranium-235 is used as a nuclear fuel, the fission cross-sectional area of uranium is said to be larger as the energy of the colliding neutron decreases. Then why does the lower the energy, the bigger it gets? Read more
Unibrows Unibrows Hey so i am not a student anymore, but i have a question about something i have been curious about for a super long time. Basically i went through a huge identity/exestential crisis a few years back and had the feeling that i was different than other people and somehow i stumbled across noticing a bunch of really great/strange people have unibrows. For awhile i was really obsessed with the idea that unibrows had some strange correlation with the way the psyche works but… Read more
URGENT NEED HELP URGENT NEED HELP hi, I am doing an experiment and I am gathering my DNA and A tomatoes DNA to make a GMO plant I just wanted to know (how I can mix DNA together and make it even?) because us humans share 60% of tomato DNA so I divided that by 2 and got 30. I need it to be even otherwise it wont work I if I don't know how to do it …. also is there any other option I can use beside a gene gun to inject my plant . thank you for your help I would appreciate if you can… Read more
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