Chuck Norris

Férfiasan végigvisongatnám… (Unmute !)

Fascinating demonstration.

This video demonstrates one of my favorite effects: the reversibility of laminar flow. Intuition tells us that un-mixing two fluids is impossible, and, under most circumstances, that is true. But for very low Reynolds numbers, viscosity dominates the flow, and fluid particles will move due to only two effects: molecular diffusion and momentum diffusion. Molecular diffusion is an entirely random process, but it is also very slow. Momentum diffusion is the motion caused by the spinning inner cylinder dragging fluid with it. That motion, unlike most fluid motion, is exactly reversible, meaning that spinning the cylinder in reverse returns the dye to its original location (plus or minus the fuzziness caused by molecular diffusion). 

Aside from being a neat demo, this illustrates one of the challenges faced by microscopic swimmers. In order to move through a viscous fluid, they must swim asymmetrically because exactly reversing their stroke will only move the fluid around them back to is original position. (Video credit: Univ. of New Mexico Physic and Astronomy)

Another reason to love motorcycles.

Women are likely to be more attracted to men whose feelings are a mystery than they are to men who have showed an interest in them. 

Source Source 2

What happened to the hot stewardesses of old?

Have to remember this...

The perfect length of time to be on vacation is 8 days. Your health and wellness levels rise rapidly while on vacation, but they peak on the 8th day and return to baseline within your first week back no matter how long you’re gone. Because lengthier vacations don’t seem to make a difference, experts say the key to improved overall satisfaction is to take more vacations, not longer ones. Source Source 2

Want to go there..

Deep in the black forest by (andywon)

Want to play this so much..

Performance capture in Death Stranding

Awesome. Fun game too..

The Witcher 3: Wild Hunt - Ciri Cosplay by Agnieszka Malocha

That looks awesome!

Good info.

HOW TO SURVIVE A HEART ATTACK WHEN ALONE Let’s say it’s 6.15pm and you’re going home (alone of course), after an unusually hard day on the job. You’re really tired, upset and frustrated. Suddenly you start experiencing severe pain in your chest that starts to drag out into your arm and up into your jaw. You are only about five miles from the hospital nearest your home. Unfortunately you don’t know if you’ll be able to make it that far. You have been trained in CPR, but the guy that taught the course did not tell you how to perform it on yourself..!! NOW HOW TO SURVIVE A HEART ATTACK WHEN ALONE… Since many people are alone when they suffer a heart attack, without help, the person whose heart is beating improperly and who begins to feel faint, has only about 10 seconds left before losing consciousness. However, these victims can help themselves by coughing repeatedly and very vigorously. A deep breath should be taken before each cough, and the cough must be deep and prolonged, as when producing sputum from deep inside the chest. A breath and a cough must be repeated about every two seconds without let-up until help arrives, or until the heart is felt to be beating normally again. Deep breaths get oxygen into the lungs and coughing movements squeeze the heart and keep the blood circulating. The squeezing pressure on the heart also helps it regain normal rhythm. In this way, heart attack victims can perhaps buy precious time to get themselves to a phone and dial 911. Rather than sharing another joke please contribute by broadcasting this which can save a person’s life! Be prepared and become part of the solution. Get your free next-of-kin notification card today. Click here: https://www.InCaseOfEmergencyCard.com/