Archive | learn RSS feed for this section

Germ theory: how scientists found out what makes us ill and saved million of lives

Germ theory is the scientific theory that tells us that some illnesses are generates by viruses, bacteria, parasites and was first inventigates thoroughly and coined by John Snow and Englishman who was doing research on the cholera cases which showed up in London in 1854. He was helped in 1884 by Robert Koch’s experiments in […]

Read more

PC wizz: what is file compression?

In short words file compression is finding the redundant parts (bytes, words) from inside a file and then building a dictionary (an index) based on their position inside the file. Then, instead of the actual words use the index number. This way you are able to compress a big text file to a 1/10th or […]

Read more

Quantum mechanics: here we come [video course]

One of the favorite physics and math teachers on YouTube, Michel van Biezen, has prepared a new series about quantum mechanics. In this new series we learn about why the atoms and subatomic particles behave in different ways than the matter we see around us. We also learn that energy, mass and momentum come in […]

Read more

How can you obtain particles directly from light?

Well, you can do that in certain circumstances. Physics is amazing and, if you learn about the gamma photons, light waves that have very intense energies, you can generate an electron and an positron. Watch in the video from above what calculations are necessary in order to obtain such particles directly from light. Now you […]

Read more

Video games: how to choose the best video card for your needs?

Jay knows best when it comes to video cards and he knows best not to say you definitively need card X or Y. But he does share some principles you should obey if you want to get the best video game card ever. In the video from above he outlines thee things you need to […]

Read more

Yup, there are animals on your face right now. And they poop only when they die

Each of us is inhabited by the microbiome, those bacteria that help us digest food. On our skin we can locate bacteria, viruses and also mites. These mites are called Demodex mites and they are brothers to arachnids, spiders. Those mites are tiny, they feed on our dead skin cells and they never poop. Their […]

Read more

How do chameleons change color?

Nope, it is not about color pigments. It is about pigments and crystals. Within the skin the chameleons have tiny cells full with nanometer sized crystals. When the position of the crystals in those cells change, the color it reflects changes too. This process is called structural coloration and the colors created through this process […]

Read more

Check the list of 5 misconceptions regarding evolution

I’ve see this first on Science Alert. The infographic from below was created by Molecular Life Sciences. The 5 misconceptions are: 1. it is just a theory: theory means fact in science 2. survival of the fittest: nope. Better say: be able to reproduce and ensure the survival of the population. Nothing to do with […]

Read more

How to Make a Matchbox Microphone

Have you ever thought of creating a microphone? For this you need a matchbox and pencil leads. Also need a battery, some wires and clips, and a pair of headphones or a speaker. This is a simple experiment that you can do at home and prove the concept of sending sounds through electrical wires to […]

Read more

Bigcommerce Services by Spring Merchant: store owners have a place to rely on [S]

Store owners are in luck: whatever development services for Bigcommerce they want they can be offered by the Spring Merchant team. The team has worked for 4 years now in offering support and development for the Bigcommerce platform. Some members have even worked on the old team of programmers, when the ISC, Interspire Shopping Cart, […]

Read more
Page 4 of 85« First...23456...102030...Last »