Hank Green of SciShow explains why some planets, like Saturn, have rings and others do not.
Hank fields one of the most commonly asked questions about our solar system: Why does Saturn have rings? Part of the answer has to do with the fact that it’s not the only planet that has them.
Richard Wiseman presents a brief visual test that indicates whether or not you are sleep deprived.
Do you need an alarm clock to wake up? Do you need a couple coffees or energy drinks to get through the day? You may be sleep deprived. Richard Wiseman of In 59 Seconds has created this short sleep test for viewers to learn just how tired they are. Need more sleep?
Night Hawk In Light demonstrates how to make a mini fire tornado in this video.
Enjoy!
This demonstration has been around for a few years now and I figured it was about time I gave it a shot myself. Many have made fire tornado’s using nothing more than a bowl of liquid alcohol for the flame, but I found that to be dangerous as the burning liquid could spill and cause a serious fire. The addition of cotton balls removes the risk of splashing. Care should always be taken around fire to be sure nothing flammable is nearby and that there is proper ventilation. A fire extinguisher should always be within reach whenever performing an experiment like this! Stay safe!
Josh Sundquist tells us about 18 famous people who are missing body parts in honor of April being National Amputee Awareness Month.
Enjoy!
If the simple sleeve roll doesn’t work for you, the Master Sleeve Roll (demonstrated here by Antonio Centeno of Real Men Real Style) will fix this problem by staying firm and looking good doing it. Plus, it’s easier to unfold/unroll too.
As embarrassing as it is for an adult to admit it, I have always struggled with rolled-up sleeves. Either they bunch up at the elbows and are uncomfortable, or they roll down over time if they’re below the elbows. I saw a friend use the Master Sleeve Roll technique at a meeting recently and he pointed me to Centeno’s post. Since then, over the last five attempts, my sleeves have stayed up perfectly.