Dear Steemians,



The future opening of the @steemstem science fair has been announced already a week ago.

Everyone is welcome to join in either preparing a project (and thus directly participating to the #sciencefair contest), or by voting for the projects you like.

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For more details of the #sciencefair, please have a look to this article.

We also take the opportunity here to send a gentle reminder to all Steemians who have signed up or manifested some interest in joining the science fair:

@rtdcs, @jeffreytong, @thatsweeneyguy, @valued-customer, @initforthemoney, @mobbs, @liuke96player, @carinewhy, @himal, @drdave, @trumpman, @spaingaroo, @majidawan, @jamhuery, @madcool, @ruth-girl and @physics-o-mania.

Please remember that the deadline for all submissions is on 11-Sept-2017 UTC 12:00am.

If you need any suggestions or have any questions with your science project, feel free to drop by our channel on the steemit chat. We would love to help you out!

This being said, we all look forward to see your projects.

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Secondly, please consider supporting the@steemstem project.

SteemSTEM is a community driven project which seeks to promote well written/informative Science Technology Engineering and Mathematics postings on Steemit. The project not only curates STEM posts on the platform through both voting and resteeming, but also re-distributes curation rewards as STEEM Power to members of Steemit’s growing scientific/tech community. More information on our actions is available here.

To learn more about the project please join us on the steemit chat. We are always looking for people who want to help in our quest to increase the quality of STEM (and health) posts on our growing platform, and would love to hear from you! You can also follow our curation trail to support us (contact us on the chat for practical details). The project account only votes on STEM related posts, so that being a part of the trail allows you to selectively benefit our growing science and tech community on the platform. We thank you for your generous support.

This page is synchronized from the post: Reminder for First Science-Fair on Steemit by SteemSTEM - Submission to the Science Fair (Entry Post)

We (@steemstem) wanted to take a brief moment to update you on the status of our project, the progress that we have made in the last few months, our current philosophy regarding supporting STEM (and Health!) content on Steemit and some plans/ideas we have for the future of the project.

What is SteemSTEM?

The steemSTEM project is a community-supported initiative to increase both the quality as well as visibility of Science, Technology, Engineering and Mathematics (STEM) posts on Steemit.

We think that the STEM disciplines are not just niche topics for discussion, but core subjects essential to the long term growth and development of Steemit as an internet social media hub. We believe that the development of a thriving STEM community will serve to both retain the current demographic as well as bring in new users through the presentation of both interesting and cutting edge material.

The project seeks in part to achieve these goal through the direct promotion of quality content posted on Steemit. The assessment of the quality of the content is achieved by a team of curators with expertise in various STEM disciplines who donate their time for the betterment of Steemit and the community.

Project Philosophy

The long-term goal of the steemSTEM project is to spread knowledge of STEM subjects and to increase the quality of the STEM posts. We (@steemstem) are doing this through positive reinforcement, by re-steeming, and upvoting good posts in the STEM field of expertise. The STEEM power used for this task is currently gathered in a twofold way, either via a direct delegation to the @steemstem account and or via the trailing of the @steemstem account by a bunch of followers. Do not hesitate to contact us if you want to participate (see the end of the post for direct links).

In addition, we also host and support competitions of various types to encourage people to give their all, showing that with better effort the outcome can only be better rewards.

The SteemSTEM Project is Committed to Distributing STEEM Power

Since its inception the steemSTEM initiative has been upvoting all accurate, comprehensive and correctly referenced articles. Occasionally, a high quality post was selected for re-steeming and the author was provided a reward of 5 SP, 10 SP or 20 SP (the exact amount has varied over time). The focus of this re-steeming is primarily for newer authors in need of additional exposure.

Moreover, since the inception of the steemSTEM project, various other contests and projects have been organized and supported, and the community members rewarded with STEEM Power for their participation.

These efforts have allowed us to give directly back to the Steemit community a total amount of 1838.5 SP, spread over 99 different Steemians!

Supported Contests

The steemSTEM project has been heavily involved in supporting contests designed to challenge the Steemit community, instill a greater appreciation for STEM content and increase the vested (STEEM Power) stake of the STEM community members (both content creators and commenters alike). We have supported contests (either through helping with exposure, providing funding or both) run by a variety of STEM content creators including:

• @jaki01
  • biologychallenge 1
  • chemistrychallenge 3
  • chemistrychallenge 4
  • chemistrychallenge 5

• @kenchung
  • Get Ready! Mathematics × Programming Competition Round 3! 數學 × 程式編寫比賽 (第三回) 你準備好了嗎?
  • [Question] Mathematics × Programming Competition 4 [問題] 數學 × 程式編寫比賽 (第四回)
  • [40 SBD + 15 SP award!] Logo design contest for the “Mathematics × Programming Competition”! 徽標創作 - 「數學 × 程式編寫比賽」

• @mystifact
  • Introducing the all new MystiFACT-or-FICTION Challenge!
  • MystiFACT-or-FICTION challenge 1 - Can stress eventually KILL you?
  • MystiFACT-or-FICTION challenge 1 - RESULTS

• @himal
  • Himal-Health contest - Health Awareness on Steemit ! …Rewards for the Good responses…

• @suesa
  • Suesa’s Science Challenge
  • Suesa’s Science Challenge - Results

We have also been trying to support the new sciencepic tag created by @mcw as a way for anyone to feel welcome contributing to STEM on steemit

NEW: SciencePic – Quest for all Steemians for science photos and pictures

Past SteemSTEM Team Contests

The steemSTEM management team has also been involved in the creation and running a variety of contests including two writing contests:

• SteemSTEM Writing Competition - Sharing Knowledge on Steemit
• Results From The First SteemSTEM Writing Competition
• SteemSTEM Writing Competition 2 - Sharing Knowledge on Steemit
• Results From The Second SteemSTEM Writing Competition

The purpose of these competitions was to provide the STEM community on Steemit a set of excellent examples of what well cited, posts look like, and to reward those posters for their efforts. We feel that these contests were a huge success and resulted in the generation of a nice set of high quality content.

One physics challenge has also been organized by @lemouth SteemSTEM physics challenge 1 - Up! Results for the Physics challenge 1 - Up!!

Current and Future Project Activities

In continuing with the tradition of steemSTEM management team run contests and competitions, we are currently running a Steemit Science Fair! This project is being spearheaded by @biuiam who is putting in a large amount of effort to ensure a quality competition!

Steemit Science fair.

Growth of the steemSTEM Management Team

As the community grows so too does the team of users dedicating their time to support the workings of the project. The steemSTEM management team currently includes (in alphabetical order) @anarchyhasnogods, @biuiam, @cristi, @justtryme90, @lemouth, @mobbs (newest managing team member assisting us in expanding curation efforts to better cover the technology tag), and @suesa. Each of these management team members has delegated at minimum 10% of their personal STEEM Power to enable the @steemstem account to accrue STEEM through curation which is provided back to the community in the form of the above rewards. The steemSTEM management team members do not receive ANY STEEM generated by the project account as payment for their participation and dedication to the project. All generated funds are returned to the community.

Moreover, many additional Steemians have generously agreed to trailing the steemSTEM project account’s (@steemstem) votes. In this way, good STEM content on the platform gets better rewarded, through the active curation efforts of the steemSTEM management team members.

In addition, many of the voted posts are advertised on our discussion channel on Steemit.chat, so that Steemit STEM-aficionados can find, read and comment those posts in an easier way.

The science-fair and growing the steemSTEM curation trail are our two big projects of the moment, which are connected to the growth of the initiative.

In the case you want to help (there is no help too small!), you can either join us on the Steemit.chat, on the steemSTEM channel, and/or follow our curation trail on Streemian.

The @steemstem Voting/Curation Bot

An “in-house” @steemstem curation bot is currently being worked on, implemented and maintained by @anarchyhasnogods as a means to complement the streemian service and ensure consistent support of STEM content by the steemSTEM team and community. More information about this bot and how to signup may be made public in the coming weeks.

Thank You Steemit Community

Finally we would like to thank each and every member of the Steemit community, for their open minds, and quest for knowledge and understanding. We will continue to tirelessly work to the best of our abilities to develop a vibrant STEM community on Steemit such that we may all be educated, entertained and amazed by the great work happening around the world to increase our understanding of ourselves, our planet and our universe.

We appreciate the generous support by the community members for this project, and look forward to continuing to work with all current and future supporters to achieve the lofty (but attainable!) goals of the project.

This page is synchronized from the post: An Update on the SteemSTEM Project

Once more I ( @jaki01 ) let run my #chemistrychallenge under the SteemSTEM flag to support this still growing science community which in my eyes adds a lot of value to our Steemit community!

What could be more fun than activating your brain and at the same time having the opportunity to win up to 30 STEEM POWER. :-)

Rules - what are the requirements to win the prize?

The winner is the first person to post the correct solution (correct number and correct unit; solution process required). The prize for the correct answer is 30 STEEM POWER. We will send it to the winner immediately after the article is paid out (7 days after posting).

If nobody is able to determine the solution before Sunday, July 9th, 2017 at 10 pm (German time!) the prize (30 STEEM POWER) will be added to the next competition (bringing that one up to 45 STEEM POWER!).

Your Chemistry Challenge to Solve consists of four parts this time:

1. What is the correct equation for the reaction of isooctane (2,2,4-Trimethylpentane, C₈H₁₈) with oxygen O₂ to carbon dioxide CO₂ and water H₂O? (Hint: it is a redox reaction.)

2. Let’s assume that gasoline consists to 100 % of isooctane C₈H₁₈, and a car would consume exactly 5 liters gasoline when it goes over a distance of 100 kilometers. One liter of gasoline would cost 1.50 euro. How many kilometers could the car go if the driver tanks up his vehicle for exactly 45.60 euro (tank was empty before)?

3. How many kg and liters of CO₂ would be emitted by the car while going the distance you calculated in part 2?
   Given parameters:
   ρ(C₈H₁₈) ≈ 0.75 g∙cm^-3 ; molar masses: C = 12 g/mol ; H = 1 g/mol ; O = 16 g/mol ; universal gas constant R = 8.314 kPa∙l∙mol^-1∙K^-1; temperature T = 295 K (kelvin);
   air pressure p ≈ 1 bar ; 1 bar = 10⁵ Pa
   Hint: use the equation of part 1!

4. Let’s assume, the average speed of the car while going the distance which you calculated in part 2 was 100 kilometers per hour (100 km/h).
   What is the average reaction speed of dissipating isooctane v(C₈H₁₈) during this timescale?

This page is synchronized from the post: #Chemistry Challenge 5

10 days ago, we proposed to the Steemit community the first episode of regular physics challenges.

The idea was to provide a problem where the answer was not unique, but that would instead allow Steemians to try to use what they knew about physics and show how their knowledge could be applied.

We decided to focus on what is happening in the movie ‘Up’ where the old man attaches balloons to his house to go far in the sky. The question was about the number of balloons that was needed.

Funnily enough, we even got answers that none of us were expecting!

Our personal conclusions are that this challenge was a great success. It generated a scientific discussion that was spread over 35 comments. And it was really fun to discuss with you guys! Thanks a lot!

As a consequence, we will propose another challenge… soon (enough).

And now, what everybody is waiting: the results. First of all, the reward of 100 STEEM will entirely be shared among the participants. We were super happy with your participation! On top of that, the post earned 42.194 SBD, which once converted in STEEM, gives 30 STEEM.

We will thus give back to the steemit community today a total of 130 STEEM. The total list of (alphabetically ordered) participants includes: @ace108, @bsameep, @cryptastic, @dreamrafa, @jamhuery, @lovewild, @Kryptik, @point .

Each of the participants will get 3 STEEM to start with. This leaves 106 STEEM to be shared. It was very hard for us to decide, and those negotiations were actually tougher than the Paris agreement on climate change. Okay maybe not…

This being said, the final ranking is

@ace108: 3 STEEM @bsameep: 23 STEEM @cryptastic: 30 STEEM @dreamrafa: 6 STEEM @jamhuery: 20 STEEM @lovewild: 11 STEEM @Kryptik: 7 STEEM @point: 30 STEEM

These accounts are currently being powered up, and thanks again for your participation. All earnings from this post will be used for future steemSTEM activities!

This page is synchronized from the post: Results for the Physics challenge #1 - Up!!

The steemSTEM crew is happy today to initiate a series of physics challenges. Yep, physics is included in STEM too (even if there is no ‘P’ in STEM)!

The rules are very simple: - A complicated problem will be asked. - The problem will be well defined, but not many details will be given. - A solution will have to be found by the community before the payout of the post. - The solution itself is worthless. The proof and the logic used to tackle the problem are what matters. - The challenge lasts 7 days.

So far, nothing crazy. However we insist: the solution will have to be found by the community. This means that the community will share some rewards.

In this way, anyone making a comment allowing the group to get closer to the solution will be rewarded. Yes, you read that correctly: anyone trying to help will be rewarded (and by rewarded we mean with money $$$).

For this first challenge, the rewards consist of 100 STEEM as well as all SBD this post earns.

The way this will be shared depends on the relevance of the comments that will be made, and this will be assessed by the steemSTEM crew: @lemouth, @justtryme90, @anarchyhasnogods, @jaki01, @hagbardceline. No member of the steemSTEM crew is eligible for these rewards, only any other participating member of the steemit community.

Note that ALL rewards will always be paid to participants in the form of Steem Power. That is our usual way to contribute to the community. :)

If after three days, the community is still in the dark, a first hint will be given (and the pot will be accordingly reduced). If after 5 days, the community is still lost, a second clue will be given (and the pot will be reduced a second time).

Very importantly, there is no guarantee that the entire pot will be split among the participants. For instance, we can imagine a situation where the solution is not found, or where the comments are not helpful enough. In this case, a fraction of the money will be shared, and the rest will be used for the subsequent challenge.

NOW THE CHALLENGE

_{[image credits: Pixabay]}

Check the image above. How many balloons do we need to make this happen?

From the discussion in the comments, please find below some further specifications: - We just want to lift the house out of the ground by few centimeters. We do not assume it is fixed. - We consider a real house and real balloons, so that the picture is only illustrative. - We make the crude and wrong assumption that all balloons can be inflated simultaneously in no time.

Have fun! And remember: we don’t care about the exact solution. Only the deduction and logic that you all use matters!

This page is synchronized from the post: SteemSTEM physics challenge #1 - Up!

https://steemitimages.com/DQmXUpqkFcPLVxzcUPcxCeit5UWMzQX4yAMExHuehYph4kE/Chemistry_quiz.jpg

Once more I ( @jaki01 ) let run my #chemistrychallenge under the SteemSTEM flag to support this still growing science community which in my eyes adds a lot of value to our Steemit community!

What could be more fun than activating your brain and at the same time having the opportunity to win up to 15 STEEM. :-)

Rules - what are the requirements to win the prize?

The winner is the first person to post the correct solution (correct number and correct unit; solution process required). The prize for the correct answer is 15 STEEM. We will send it to the winner immediately after the article is paid out (7 days after posting).

If nobody is able to determine the solution before Sunday, June 4th, 2017 at 10 pm (German time!) the prize (15 STEEM) will be added to the next competition (bringing that one up to 30 STEEM!).

https://steemitimages.com/DQmUmubGNUXbayL9zt3sENkE6ntKNwy3cYbC1kJhfgDG7iM/Luft.jpg

SOURCE: pixabay

Your Chemistry Challenge to Solve:

Imagine a room with an open window contains a mass of exactly 51600 g air which has a density of ρ(air) = 1.29 kg/m³.
At the beginning temperature T = 0 °C and pressure p = 101 kPa.
Assume temperature gets increased now by 13 °C (pressure stays constant). That means the volume of the air is increasing as well.

Questions:

How many cubic meters (m³) air escape of the room (through the open window) and how much kilojoule (kJ) of volume work will be achieved during this process?

Some Things Ya Might Want To Know!

• 1 Pa = 1 kg∙m^-1∙s^-2
• 1 J = 1 kg∙m²∙s^-2
• 0 °C = 273.15 K (kelvin)

This page is synchronized from the post: Chemistry Challenge # 4