Welcome to the 14th episode of the stemng digest series where we bring to you some of the best posts under the #stemng tag in the past week.
For those that do not know yet, stemng is a sub-community of steemSTEM, a community-driven project which seeks to promote well-written and informative Science, Technology, Engineering and Mathematics posts by Nigerians on Steemit. The project involves submitting quality STEM-related posts to the steemSTEM management for upvoting and resteeming where applicable.
More information about stemng activities can be found here, while details of what it means to be part of steemSTEM can be found here, as well.
As we usually do, we have sifted through the stemng tag and even though there were several good posts to choose from, below are the posts that stood out for week #14.
Today's digest comes a little bit earlier than usual.
Most everyday things we use today all have a fascinating history. But some of the time the history is not accurate. On Saturday, 
@tormiwah took up the task of giving us the accurate story behind the groundbreaking discovery of penicillin. The story is worth reading as it was entertaining as well educative. Do check the link on the description above for all the juicy details.
The second post on the list is that of 
@vanessahampton. The writer has a fascination for blood even though she is not a vampire. Which you will agree is a good thing. The article took us on the journey into the heart (pun not intended) of the biophysics of blood circulation with heart, the natural body pump, doing an excellent job of getting the blood where it is needed.
The question of stars and things up in the sky is one that most people find intriguing right from the kindergarten. The post by 
@noble-noah looked at the phenomenon of a "falling" or "shooting" star.
The modern living makes it hard to avoid packaged food. The packaging comes at a risk to our health. The article by 
@emmaculate x-rays some of the packaging methods and the attendant health implication.
In this post, 
@churchboy takes a personal look at how external conditions could influence the decisions of individuals and how group identity is a potent factor in the relationship between inmates and correctional officers. He did this by reviewing the famous, yet controversial Stanford Prison Experiment by Dr Phil Zimbardo where ordinary individuals were made to turn against each other when they were grouped as guards and inmates in an experiment. The post leaves you wondering if humans are inherently evil or whether the participants in that experiment would have turned to heroes of each other if the conditions were reversed.
The post by 
@rharphelle looks on the various machining procedure that is employed to produce other machine parts. You do not have to be a mechanical engineer to understand the simple explanation of the various processes that manufacturers use in their machine part production.
Ending this week's selection is this post by 
@aamin. It explores the evolutionary advancements of the different classes of the animal kingdom of which man is at the apex of the chain.For more on the biological differences and evolution do visit the blog above.
About the selection process
The post for each day was selected based on consensus between the stemng management, in persons of 
@greenrun and 
@gentleshaid. This week's selections was made by @gentleshaid and presented by @greenrun.
Do not feel discouraged if your post did not make the list. There are rooms for improvement for everyone. Find time to read these guidelines if you wish to improve on your STEM-related writings.
Support for 
@stemng is welcome in any form, including upvotes, resteems and steem power delegations. Feel free to interact with fellow stemians in our discord server.
All curation rewards earned will be used to fund the @stemng project.
Till next week!
