Archive | science RSS feed for this section

Americapox: The Missing Plague – how did the American tribes vanish?

CGP Grey explains why so many indigenous Americans died when the colonists first came in the Americas. Most of the death work was done by the plagues. They didn’t had plagues like these before because you don’t have many animals in the Americas which could spread disease like you have in the Old Continent. Also, […]

Read more

Genetics, stranger than you thought

Some are scared of genetics, the study of DNA and how it can be manipulated. GMOs are one of the best things people could ever conceive. Call it forced evolution or directed evolution and we’re at a point where we can create salmon which is more nutritious or plants which can handle bad weather or […]

Read more

Science craze: 7 hours of science. I dare you watch them all in one day!

Yesterday and Saturday were lazy days for me. I had some work to do, but otherwise made sure to spend hours upon hours watching documentaries, online videos of courses. In the first video you see a team from Fermilab, US talking about a specific topic, like what are neutrinos or the importance of an operator […]

Read more

Chemistry and physics: bonds and the Periodic Table of Elements

Chemical bonds are mainly about electrons and how are they shared with the neighboring atoms. A bond is made when an electron or more are more probably to be found in an area between the atoms than around specific atoms. You cannot say that an electron jumps from one atom to the other and then […]

Read more

Health jam: mixing drugs, vitamin supplements and the science of placebo

Mixing drugs is harmful, even deadly. Didn’t your doctor tell you that already? Mixing drugs with alcohol has the same deadly effect. People need to be very careful and ask their doctors if some drugs can be taken with other drugs. This is why it is always good to tell your doctor that you’re already […]

Read more

ESOcast 78: what is airglow and why do we see so much of it in the Paranal, Chile area?

The ESOcast 78 is here. ESO has a series of video podcasts in which they explain a ton of things from what a telescope if, to how a black hole works. In this newest ESOcast we learn about the airglow, the coloured light which can be seen at night. In the last decades the airglow […]

Read more

Polarization of light explained

When I first wanted to learn about the polarization of light I found it hard to understand the concept and how do polarized filters work and why is this important. For example, if you use polarized glasses while you drive, then the horizontally polarized light scattered off the road or off the lake surface will […]

Read more

George Hrab about skepticism

In a great talk George Hrab explains what skepticism is and why we all should use it even if we are sure of the things we see in front of us. Skepticism is not cynism or denialism, both traits which are not welcome to a true to heart skeptic. A cynical person sees always the […]

Read more

Is life in Fallout 4 feasible? Science says: YES.

The main theme in the Fallout games is that a nuclear disaster takes place and some lucky people, who paid the right price, were selected to go into the allmighty protective vaults while others have been left out to rot like bugs. After a while you emerge from one of the vaults only to discover […]

Read more

What is noise cancellation?

Noise cancellation is the ability of certain headphones to cancel out background noise so that you can hear the song or the guy you’re talking with much better. Since sound is actually a sound wave with peaks and troughs the physics of waves is simple: if a wave encounters another wave with the same wavelength,the […]

Read more
Page 3 of 4412345...102030...Last »