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Math / Science

The Math / Science topic primarily includes discussions of mathematics, physics, statistics and economic analysis, but also biology, chemistry and ...

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Expert Spotlight
Munib Butt
Senior .NET/Azure Developer/Analyst Consultant

Senior technical systems architect/ analyst and developer/mentor with over 30 years’ experience (20+ years in Canada)

Article

Introduction to Computer Science

byMunib Butt
Today, we will look at some of the main topics that are covered as part of the “Introduction to Computer Science” courses at many universities and online trainings. I list these topics here with brief introductions for anyone interested to start their journey into learning about the Computer Science
Article

Truly Random Numbers in VBA

byGustav Brock
6
Pseudo random numbers are right at hand in VBA. Obtaining truly random numbers, however, requires an external source. One is the Swiss Quantis QRNG Chip. The output from one of these has been made public by ETH Zürich, and here we present a complete solution for retrieval of random numbers in VBA.
Article

The Best Part About Waking Up, Is Your Own Roasted Coffee In Your Cup.

byScott Fell
1
Most of us live by Coffee. However, are you disguising the flavor of cheap store-bought grounds (or worse, k-cups) with chemical-induced creamers? There is a much better option, and it is easier than you think!
Article
Signal integrity and power integrity relationships

The Link Between Signal Integrity and Power Integrity in Your PCB

byMember_2_8205264
In this article, I'll briefly discuss the link between signal integrity and power integrity in advanced PCBs. Simple design choices have a major impact on power integrity in a variety of systems.
Article

PCB Design, Simulation, and Analysis: Which Tools to Use

byMember_2_8205264
Whether you are designing precision imaging systems, high frequency electronic system, or other high speed system, simulation tools are a critical for designing, analyzing, and validating the functionality of your circuits for use in your next PCB.
Article

20 Varieties of Quartiles

byGustav Brock
There is no single "correct" calculation method for quartiles. Excel features two methods, some math and statistic packages offer some more, but here is presented no less than twenty methods for various purposes using VBA and Microsoft Access.
Article
Data Science

How Is Data Science Transforming Web Development?

byAlice Turner
The article is about boosting of data science and its impact on web development nowadays.
Article

Helpful Online Math Resources for All Ages

byBrianna Palmer
We can all agree that as we get older, intricate math equations slowly slip away and so it never hurts to go online for a little help. There are a few websites that offer free and comprehensive explanations that can be utilized by K-12, college students, teachers, and parents.
Article

Girls Who Code: How One Teacher Makes a Difference With Early Exposure to Computer Science

byExperts Exchange
Tucked around a curve of the Tennessee River there’s a private school that’s making waves in the local community to encourage young girls to code.
Article

Convert and format imperial distance (feet and inches) with high precision

byGustav Brock
With the functions here, you can parse, convert, and format back and forth between feet and inches and fractions and decimal inches - for normal as well as extreme values and with extreme precision.
Article

Round by the power of two

byGustav Brock
Usually, rounding is performed by some power of 10 - to thousands, hundreds, tens, or integer - or to one, two, or more decimals. But rounding can also be done to a power of two, say, 16 or 64, or 1/32 or 1/1024, even for extreme values.
Article

Round elements of a sum to match a total

byGustav Brock
What to do if a split doesn't fit? Or a bunch of invoice lines must be rounded while the sum must match a total? It takes a little, but - when done - it is extremely easy to implement.
Article
Computer Science

What Can You Do With a Degree in Computer Science?

byRyan Ayers
There's never been a better time to become a computer scientist. Employment growth in the field is expected to reach 22% overall by 2020, and if you want to get in on the action, it’s a good idea to think about at least minoring in computer science and knowing how to code.
Article

Exploring the Potential Application of Polymeric Aerogels for Use in Reducing the Acoustic Signature Created by an Airfoil

byMark Ellefsen
Aerodynamic noise is the cause of the majority of the noise produced by helicopters. The inordinate amount of noise helicopters produce is a major problem in the both a military and civilian setting. To remedy this problem the use of an aerogel coating over the airfoils of a helicopter was examined.
Article

How Data Encryption Works

byAdam Brown
2
This article covers the basics of data encryption, what it is, how it works, and why it's important. If you've ever wondered what goes on when you "encrypt" data, you can look here to build a good foundation for your personal learning.
Article

How Technology Solved a DNA Mystery

byNichole LaRue
In this article, I’ll show how research, determination, and use of modern technology helped me solve a DNA mystery.
Article

Why hard drives have less data than advertised

byJarrod Gibson
When we purchase storage, we typically are advertised storage of 500GB, 1TB, 2TB and so on. However, when you actually install it into your computer, your 500GB HDD will actually show up as 465GB. Why?
It has to do with the way people and computers use numbers and do math.
Article
Man_shadow_with_organs

An Introduction to Tissue Engineering

byJacob Scanlan
This article provides a brief introduction to tissue engineering, the process by which organs can be grown artificially. It covers the problems with organ transplants, the tissue engineering process, and the current successes and problems of the technology.
Article
Lithium Evaporation Pools, Attacama Desert, Chile. 2015

The Ubiquitous Lithium-Ion Battery

byNathanael Reinsma
8
Lithium-ion batteries area cornerstone of today's portable electronic devices, and even though they are relied upon heavily, their chemistry and origin are not of common knowledge. This article is about a device on which every smartphone, laptop, and tablet depends.
Article

Travel to Mars

byNicole Russell
This is a research brief on the potential colonization of humans on Mars.

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