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

Once more I ( @jaki01 ) let my #chemistrychallenge run 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, May 14th, 2017 at 10 pm (German time!) the prize (15 STEEM) will be added to the next competition (bringing that one up to 30 STEEM!).

Liquid fluorine:

https://steemitimages.com/DQmagvwWmuHWdN89yqruWBNi4eVyZHV6uL9pFHDbGwuDYKP/Fluor.jpg

                                                              Source: Par Fulvio314

Your Chemistry Challenge to Solve:

Fluorine can segregate into atoms according to the equation

F₂      ——->      2 F        ∆H = + 158 kJ

That means the energy one needs to split 1 mole F₂ amounts to 158 kJ (kilojoule).

Question:

What color would have a photon, which had exactly the energy necessary to segregate one single F₂ molecule into two F atoms?

Some (possibly, some may be to trick you) Useful Constants:

• Speed of light: c = 3.0 x 10⁸ m/s (meters / second)
• Planck constant: h = 4.136 x 10^-15 eV∙s (electron volt ∙ second)
• Faraday constant: F = 9.65 x 10⁴ C/mol (coulomb / mol)
• Avogadro constant: N_A = 6.022 x 10²³ mol^-1 (atoms / mol)
• jaki01’s constant: j = 6.488 x 10¹⁶ awesomes / science

This page is synchronized from the post: #chemistrychallenge 3

You may be used to me posting these from my personal account (@jaki01), well the steemSTEM team loved what I was trying to do with you all, and saw how much you were enjoying coming up with answers. So they have invited me into the group to continue these contests and have offered to help increase the reward for determining the correct answer! 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? It’s simple! The winner is the first person to post the correct solution (correct number and correct unit). The prize for the correct answer is now 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, April 30th, 2017 at 10 pm (German time!) the prize (15 STEEM) will be added to the next competition (bringing that one up to 30 STEEM!!).

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https://steemitimages.com/DQmaicSxDBZrrcT8m6Y3kj7ZADTZ63DzuCFajoEnVxBG3Te/Dragon.png

Source: pixabay

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Your Biology Challenge to Solve:

Today let’s make a mental trip to “the planet of dragons” (where the same Mendelian genetic rules apply as on earth).
At this place very far from us the male dragon “Tyrodocus” and his female partner “Ankylotops” are expecting a baby dragon.

The attributes of the future descendant depend on the alleles (variants of genes) of its parents, and we have:

The dragon parents wish so much to get a baby who can spit fire, has poison fangs, yellow eyes and a violet tongue. Unfortunately the probability for that is rather low only.

Given as help:

• Genotype of “Ankylotops”: AABbDdee.
• Genotype of “Tyrodocus”: aabbDdEe.
• Genes are inherited independently from each other (they aren’t coupled).

Question:

This page is synchronized from the post: #biologychallenge 1

Today we Bring You The Results Of The Second SteemSTEM Writing Competition!

_{[Join us on #steemSTEM]}

As we, the SteemSTEM people, always say is that the best way to learn about a topic is to teach it to others. Our initiative offers the community the opportunity to get rewarded for such an effort, and we are always hunting for the best contributions. Today we are very pleased to report to you the winners of the prizes from the Second SteemSTEM Writing Competition!

What Were The Potential Prizes?

• 1st Place - 200 Steem Power + 18.5 STEEM (rewards earned from announcement post)
• 2nd Place - 100 Steem Power + 18.5 STEEM (rewards earned from announcement post)
• 3rd Place - 50 Steem Power + 18.5 STEEM (rewards earned from announcement post)
• 4th Place - 50 Steem Power
• 5th Place - 25 Steem Power

The top three posts were re-steemed in addition to the bonus monetary prize.

As an extra thank you to all of those who participated, we are awarding a 5 Steem Power bonus to all runner up submissions. We appreciate all of your hard work creating these posts and thank each one of you for the diverse sample of topics.

Reviewing How Judging and Ranking Was Performed

Three members of the SteemSTEM team, @anarchyhasnogods, @lemouth, and @justtryme90 were responsible for judging the posts.

We assigned each submitted post a score based on 5 guidelines.

• Accuracy - 15 pts
• Comprehensibility - 15 pts
• The choice of the topic - 10 pts
• Formatting - 5 pts
• Appropriate citations and references - 5 pts

Scientific accuracy: Spreading inaccurate and/or false information leads to confusion for your readers!

Comprehensibility: Garbled text or text that is too technical can be hard to understand. It is always possible to make complex topics simple, and that is something that we as science writers, should strive for.

Topic: As said above, we will pay a special attention to the reasons that have pushed you to write on the submitted topic.

Formatting: Large solid blocks of text are difficult to read and concentrate on, no matter the comprehensibility of the text. We are not looking for advanced formatting techniques, just basic, solid formatting improving the readability and motivating your readers to put in the time to read your post.

Citations: Citing information gives credits on the one hand, and serves as a way for your readers to learn more if they are interested on the other hand.

The Results

The Top Five Posts

First Place

Ultrasonography by @hagbardceline

What we thought: Wow! What a well crafted post! Excellently written, organized, and cited. The formatting made the well crafted text even more easily digestible and the images chosen truly complemented the text. Finally, the depth and quality of the cited material should serve as a fantastic example of what one can do to both ensure an accurate post, as well as provide a nice springboard for further reading. We all learned quite a bit about ultrasound and its use in the ultrasonography technique from this post!

Second Place

Does inhaling bacteria increase intelligence? by @jaki01

What we thought: Another fantastically crafted post! The writing is very clear and the information well supported. The information is also extremely well cited, and easy to access due to the author’s use of links and citation markers throughout the text. A fascinating report on Mycobacterium vaccae, and its influence on our brains, moods, serotonin levels and learning abilities.

Third Place

Virtual Futures : The Allure and Illusion of Digital Urbanism by @voronoi

What we thought: This was a very thought provoking post! As with the top two submissions the writing in this post is exceptional and the information factual, well supported and interesting to read. The images and gifs of what the future augmented reality may look like really helped in making the text come to life and truly made for a wonderful learning experience.

Fourth Place

In the future, Science may help patients forget certain memories by @mgibson

What we thought: This was a very well written and interesting post. As with the top three submissions the writing in this post is exceptional, and the information factual. Though not as extensively sourced and shorter than the posts above, this is still a very well organized and thought provoking contribution to scientific discussion on steemit!

Fifth Place

Smallpox, Vaccination, and Oscillatory Epidemic Dynamics by @kzollove

What we thought: Yet another great post. As with the top four submissions this is a well written piece of work and the information supported with citations. Tells a nice history of the eradication of smallpox as a result of of the development of the vaccine. We did look at your graph @kzollove, and we hope others will too!

Runners Up Submissions (Alphabetical Order By Author)

| Author | Post Title | |—|—| | @danigirl | Making Our Bodies Uninhabitable to Cancer | | @jeff-kubitz | Healing Whirlwinds - SteemStem Competition 2 | | @madlenfox | A miracle of nature | | @maszblogs | What’s that gas?? One of Most Common Gasses in the Universe | | @surpassinggoogle | Around 60 People In The World, Have Superhuman Memory And Remember Each Day Of Their Lives!!!|

We @steemstem thank all of you for participating and wish congratulations to the winners!

Considering the success of this contest we hope to do another in the near future. Please be on the lookout for the next contest opportunity

Thank you for your support of the @steemstem project and your enthusiasm for creating and reading great STEM content on steemit.

This page is synchronized from the post: Results From The Second SteemSTEM Writing Competition

Just A Quick Reminder About Our Current Writing Contest

There are only a few days left to enter a submission into the contest! Remember there will be over 500 Steem Power / STEEM awarded to the top 5 posts! These awards are in addition to the value earned by the post on its own! Entering this contest is a chance to obtain a significant bonus amount of STEEM!

A Recap Of The Original Post / Submission Information

_{[Join us on #steemSTEM]}

As we, the SteemSTEM people, always say is that the best way to learn about a topic is to teach it to others. Our initiative offers the community the opportunity to get rewarded for such an effort, and we are always hunting for the best contributions. In the spirit of this effort, we organized the second STEM writing contest on Steemit!

The topic?

As with the first round, the topic of the competition is open so that you can write about any topic of interest as long as it is connected to the STEM fields. We have however added a few requirements to make the contest funnier: Each article will have to include one paragraph detailing the reason of the choice of the topic. Special points in the ranking (see below) will be attributed for this. Of course, we imagine that the choice is motivated by the fact that you find the topic interesting and think that others could learn something by reading about it, but we would like you to expand upon your reasons a little bit. The length of the post must be comprised between 800 and 1500 words. This will ensure the post is neither too short nor not too long. Any user can only post at most a *single entry to the contest (more information below).

Moreover, we impose three extra simple rules:

• Be nice
• Have fun
• Cite ALL your sources

We recommend the reading of the posts who won the previous edition of the contest for examples. Information can be found here.

The prizes

This time, the five best posts will be rewarded. 1st Place - 200 Steem Power + 33% of Steem/SBD earned from this post 2nd Place - 100 Steem Power + 33% of Steem/SBD earned from this post 3rd Place - 50 Steem Power + 33% of Steem/SBD earned from this post 4th Place - 50 Steem Power * 5th Place - 25 Steem Power

In addition, if you manage to rank in the top three your post will be re-steemed in addition to the bonus monetary prize.

Entry

Entry is simple, just tag your post with the dedicated #steemstem-competition2 tag. To make sure we notice your entry, you can advertise it on the #SteemSTEM chat.

To maintain fairness to all participants, and encourage everyone to put their best foot forward we will only be accepting ONE entry per user. If you submit multiple articles to the competition only the first submitted article will be considered.

Judging and ranking

The jury assessing the quality of the posts will again be comprised of three members of the SteemSTEM team, @anarchyhasnogods, @lemouth, and @justtryme90.

As with all aspects of the SteemSTEM project, the team is prohibited from participating. All the inputs come from the community and all of the rewards go back to the community!

We will each assign your post a score based on 5 guidelines. Accuracy - 15 pts Comprehensibility - 15 pts The choice of the topic - 10 pts Formatting - 5 pts * Appropriate citations and references - 5 pts

Scientific accuracy: Spreading inaccurate and/or false information leads to confusion for your readers!

Comprehensibility: Garbled text or text that is too technical can be hard to understand. It is always possible to make complex topics simple, and that is something that we as science writers, should strive for.

Topic: As said above, we will pay a special attention to the reasons that have pushed you to write on the submitted topic.

Formatting: Large solid blocks of text are difficult to read and concentrate on, no matter the comprehensibility of the text. We are not looking for advanced formatting techniques, just basic, solid formatting improving the readability and motivating your readers to put in the time to read your post.

Citations: Citing information gives credits on the one hand, and serves as a way for your readers to learn more if they are interested on the other hand.

After evaluating each post we (@steemstem) will post the results and emphasize the five top posts (together with the reasons why we have chosen them) once the contest is over.

Entry ends Tuesday March 7th, exactly one week. So there is still time to get your submissions in!

The results will be announced and prizes sent within the following week, unless there happens to be a major turnout.

This page is synchronized from the post: REMINDER: SteemSTEM Writing Competition #2 - Over 500 STEEM POWER In Prizes

Today we are announcing the second open SteemSTEM writing competition!

_{[Join us on #steemSTEM]}

As we, the SteemSTEM people, always say is that the best way to learn about a topic is to teach it to others. Our initiative offers the community the opportunity to get rewarded for such an effort, and we are always hunting for the best contributions. In the spirit of this effort, we are happy to organize the second STEM writing contest on Steemit!

The topic?

As with the first round, the topic of the competition is open so that you can write about any topic of interest as long as it is connected to the STEM fields. We have however added a few requirements to make the contest funnier: Each article will have to include one paragraph detailing the reason of the choice of the topic. Special points in the ranking (see below) will be attributed for this. Of course, we imagine that the choice is motivated by the fact that you find the topic interesting and think that others could learn something by reading about it, but we would like you to expand upon your reasons a little bit. The length of the post must be comprised between 800 and 1500 words. This will ensure the post is neither too short nor too long. Any user can only post at most a *single entry to the contest (more information below).

Moreover, we impose three extra simple rules:

• Be nice
• Have fun
• Cite ALL your sources

We recommend the reading of the posts who won the previous edition of the contest for examples. Information can be found here.

The prizes

This time, the five best posts will be rewarded. 1st Place - 200 Steem Power + 18.5 STEEM (Rewards earned from this post) 2nd Place - 100 Steem Power + 18.5 STEEM (Rewards earned from this post) 3rd Place - 50 Steem Power + 18.5 STEEM (Rewards earned from this post) 4th Place - 50 Steem Power * 5th Place - 25 Steem Power

In addition, if you manage to rank in the top three your post will be re-steemed in addition to the bonus monetary prize.

Entry

Entry is simple, just tag your post with the dedicated #steemstem-competition2 tag. To make sure we notice your entry, you can advertise it on the #SteemSTEM chat.

To maintain fairness to all participants, and encourage everyone to put their best foot forward we will only be accepting ONE entry per user. If you submit multiple articles to the competition only the first submitted article will be considered.

Judging and ranking

The jury assessing the quality of the posts will again be comprised of three members of the SteemSTEM team, @anarchyhasnogods, @lemouth, and @justtryme90.

As with all aspects of the SteemSTEM project, the team is prohibited from participating. All the inputs come from the community and all of the rewards go back to the community!

We will each assign your post a score based on 5 guidelines. Accuracy - 15 pts Comprehensibility - 15 pts The choice of the topic - 10 pts Formatting - 5 pts * Appropriate citations and references - 5 pts

Scientific accuracy: Spreading inaccurate and/or false information leads to confusion for your readers!

Comprehensibility: Garbled text or text that is too technical can be hard to understand. It is always possible to make complex topics simple, and that is something that we as science writers, should strive for.

Topic: As said above, we will pay a special attention to the reasons that have pushed you to write on the submitted topic.

Formatting: Large solid blocks of text are difficult to read and concentrate on, no matter the comprehensibility of the text. We are not looking for advanced formatting techniques, just basic, solid formatting improving the readability and motivating your readers to put in the time to read your post.

Citations: Citing information gives credits on the one hand, and serves as a way for your readers to learn more if they are interested on the other hand.

After evaluating each post we (@steemstem) will post the results and emphasize the five top posts (together with the reasons why we have chosen them) once the contest is over.

Entry starts tomorrow, Wednesday March 1st and ends Tuesday March 7th, exactly one week. The results will be announced and prizes sent within the following week, unless there happens to be a major turnout.

This page is synchronized from the post: SteemSTEM Writing Competition #2 - Sharing Knowledge on Steemit

Today We Bring You The Results Of The SteemSTEM Writing Competition!

_{[Join us on #steemSTEM]}

One of the goals of the SteemSTEM project is to promote learning. The best way to learn about a topic is often to teach it to others! Steem and Steemit provide us with the unique opportunity to get rewarded for such efforts, and the SteemSTEM initiative affords us the opportunity to further reward the best contributions!

What Were The Potential Prizes?

• 1st Place - 100 Steem Power + 4.224 STEEM (reward from the value of the announcement post)
• 2nd Place - 50 Steem Power + 4.224 STEEM (reward from the value of the announcement post)
• 3rd Place - 25 Steem Power + 4.224 STEEM (reward from the value of the announcement post)

The top three posts were re-steemed in addition to the bonus monetary prize.

As an extra thank you to all of those who participated, we are awarding a 5 Steem Power bonus to all runner up submissions. We appreciate all of your hard work creating these posts and thank you for the diverse sample of topics.

Reviewing How Judging and Ranking Was Performed

Three members of the SteemSTEM team, @anarchyhasnogods, @lemouth, and @justtryme90 were responsible for judging the posts.

We assigned each submitted post a score based on 4 guidelines. Accuracy - 15 pts Comprehensibility - 15 pts Formatting - 5 pts Appropriate citations and references - 5 pts

Accuracy We will check for the scientific accuracy of your post. Remember that spreading inaccurate and/or false information leads to confusion for your readers!

Comprehensibility We will rate on how easy it is to read and understand the text. Garbled text or text that is too technical can be hard to understand. Good scientific writing makes even complex topics seem simple.

Formatting We will rate the post on how good it looks. People notice the formatting before the text. Large solid blocks of text are difficult to read and concentrate on, no matter the comprehensibility of the text. We are not looking for advanced formatting techniques, just basic, solid formatting.

Citations Just citing your sources isn’t always enough. Listing the sources below the block of text you used them in can make it easier to follow what you got from where. The goal of citing information is not just to give credits, it also serves as a way for your readers to learn more if they are interested.

Remember science is a discipline focused on learning and discovery, we should all work to help others achieve that when they read what we write.

The Results

The Top Three Posts

First Place

NASA Disasters Re-examined: Part II by @vir

What we thought: This was a fantastic post. The writing was very clear and engaging. The information was presented in a very clear manner. The formatting was visually appealing and allowed for a great flow when reading the material. Finally the number, quality and style of cited materials throughout the text was all extremely well done, and could serve as a reference for others to follow in their own posts.

Second Place

Wild rabbit: the Ecosystem Engineer by @rmach

What we thought: This was very engaging post. The writing is very clear and the information factual and well supported. The images and incorporated videos really aided in the ease of digesting the information and truly complemented the text. The information is also very well cited, though not as easy to access due to a lack of direct links.

Third Place

How Image Recognition Works - Part 1: Basics and Perceptrons by @sykochica

What we thought: This was a very interesting post! As with the top two submissions the writing in this post is exceptional and the information factual and well supported. The images and gifs really helped in understanding the process behind image recognition.

Runners Up Submissions

(by alphabetical order)

| Author | Post Title | |—|—| | …………………………. | ……………………………………………………………………………………..| | @giantbear | Ants The Most Successful Species On Earth | | @jaki01 | Baby With Three Parents | | @norbu | Biologists Develop First Semi Synthetic Single Celled Organism Using Lab Made DNA | | @meetsin | Cryptococcus | | @a-condor | How Much Do You Know About Your Blood?! | | @norbu | Is Our Universe A Vast And Complex Hologram? New Research Thinks So!| | @meesterboom | Is Our Universe One Gigantic Hologram? | | @tfeldman | Osteopathic Insight New Harvard Study Suggests That Mechanical Stimulation Alone Leads To Muscle Regeneration | | @liliana.duarte | Plants Are Better Learners Then You Might Think | | @the-explorer | Scleroderma, The Rare Potential Human Wrecker |

We @steemstem thank all of you for participating and wish congratulations to the winners!

Considering the success of this contest we will plan to do another in the near future. Please be on the lookout for the next contest opportunity

Thank you for your support of the @steemstem project and your enthusiasm for creating and reading great STEM content on steemit.

This page is synchronized from the post: Results From The First SteemSTEM Writing Competition