clouds

Showing 26 posts tagged clouds

We want to learn how to make flying vehicles like this. Meet Luigi Prina, the 83-Year-Old Builder of Flying Model Ships, in this fascinating video profile: The Ships That Sail Through The Clouds

The flying ships are made from ultrathin paper and balsa wood. Everything is optimized for flight: from the weight (between 20 and 50 grams) to the aerodynamic shape. They fly like any propeller airplane. The only difference is that here the propeller is powered by an internal elastic band and not an engine.

Photo by Gianluca Giannone. Read more about Luigi Prina at Blinking City.

Related must-watch videos: a rubber-band-powered paper robotan RC Flapttera kite-like wind sculpture, a human-powered helicopter, and a great science class project: DIY walkalong gliders

via Colossal.

What did Mars look like 4 billion years ago? The team at NASA’s Conceptual Image Lab have an idea based on the existing evidence:

Billions of years ago when the Red Planet was young, it appears to have had a thick atmosphere that was warm enough to support oceans of liquid water - a critical ingredient for life. The animation shows how the surface of Mars might have appeared during this ancient clement period, beginning with a flyover of a Martian lake. The artist’s concept is based on evidence that Mars was once very different. Rapidly moving clouds suggest the passage of time, and the shift from a warm and wet to a cold and dry climate is shown as the animation progresses. The lakes dry up, while the atmosphere gradually transitions from Earthlike blue skies to the dusty pink and tan hues seen on Mars today.

The animation was released in anticipation of November 18th’s Cape Canaveral launch of MAVEN, Mars Atmosphere and Volatile Evolution mission. MAVEN will explore the planet’s lost atmosphere.

Previously: flying over a topographically accurate landscapes of Mars, and more NASA.

via PopSci.

Where might we find life in our solar system? Via skeptvScientific American Space Lab has a countdown for that: Top 5 Places to Look for Alien LifeBonus — the video comes with additional reading material:  

Is There Life on Venus?

Venus May Have Had Continents and Oceans

Was Venus Alive? ‘The Signs Are Probably There’

Tiny Saturn Moon ID’d As Good Candidate For Alien Life

Planet Profile for Titan

The Europa Report: A Report

Mars vs. Europa: Are we looking in the wrong place for alien life?

Mars Rover Finds Evidence of Ancient Habitability

Next Mars Rover Will Seek Out Signs of Past Life

Follow this up with Brian Cox's favorite wonder, Saturn’s largest moon: Titan.