Hermann van Rooyen

Hermann van Rooyen

Hermann van Rooyen
More ideas from Hermann
A total solar eclipse happens somewhere on Earth once every year or two. What is an eclipse? Learn more about how solar eclipses happen, the four types of eclipses, and how to view the sun safely if you're within the path of totality.Eclipse map adapted with permission: https://www.exploratorium.edu/eclipse

A total solar eclipse happens somewhere on Earth once every year or two. What is an eclipse? Learn more about how solar eclipses happen, the four types of eclipses, and how to view the sun safely if you're within the path of totality.Eclipse map adapted with permission: https://www.exploratorium.edu/eclipse

You can feel the weight of an object on Earth because of its mass. But what is mass?  - Image Credits: Flickr/Jeremy Brooks

You can feel the weight of an object on Earth because of its mass. But what is mass? - Image Credits: Flickr/Jeremy Brooks

An isolated archipelago far out in the ocean holds one of humanity's greatest treasures: a 'central bank” for the world’s seeds. Svalbard Global Seed Vault...

An isolated archipelago far out in the ocean holds one of humanity's greatest treasures: a "central bank” for the world’s seeds.

WORKOUT: Love Your Body, Lose Your Love Handles @DIYActiveHQ #fitness #workout #exercise #AtHomeFitness

WORKOUT: Love Your Body, Lose Your Love Handles love the oblique work great for yoga Sculpt and home workout

Total Body Medicine Ball Workout

All you need is a medicine ball to complete this Total Body Medicine Ball workout! Your upper and lower body and your core will feel the burn during this workout that targets the whole body in a decreasing repetition format.

May 12, 2017 -  Video shows how narwhals use their iconic tusks to hunt fish. Filmed near Nunavut, Canada, a narwhal can be seen tapping a fish with its tusk. The tap stuns the fish and makes it easier for the narwhal to eat. The tusk is actually a tooth that spirals out from their head, and it can reach nine feet in length. Narwhals live in remote locations and little is known about them. The tusks are covered in thousands of nerve endings, and they help the narwhals sense their…

Mystery Behind Narwhals' Iconic Tusks Revealed

Nuclear energy was supposed to be the energy of the future. Here TED Ed explains some of the technical issues keeping nuclear power at bay.

Why nuclear energy doesn't dominate the globe - Popular Mechanics

Researchers have figured out how to make any surface a touchscreen. Check out how it works, here.

High-tech spray paint turns anything into a touchscreen - Popular Mechanics

Red Velvet Oreo Truffle Brownies KitchenAid Mixer Giveaway for Valentine’s Day!

1 box oz) red velvet cake mix cups butter, divided 2 eggs 1 package (about whole Oreos 1 bag oz) milk chocolate chips (about cups) 1 bag oz) mini chocolate chips (about cups) 1 cup pint) heavy whipping cream Preheat oven to 350 degrees F.

This is very detailed instructions on building your own soda pop can solar heater. It has step-by-step instructions include the output data from the project.

The Pop Can Solar Heater: An incredibly simple, safe, and affordable solar heating project that can be completed in a day after you have saved up the cans. You can also use corrugated aluminum siding. This is genius!