It is some men's great dream to explore the world. Today we present Solar Impulse 2, an aircraft, powered only by the sun that will attempt the first solar flight around the world. What is Solar Impulse? The only airplane of perpetual endurance, able to fly day and night on solar power, without a drop of fuel. Get more information here about the project.

The solar airplane Solar Impulse 2 was presented on April 9th, 2014. The construction of the experimental solar aircraft didn't happen in a day. Watch this video about the construction of Solar Impulse 2 and understand the steps that had to be taken to attempt the first solar flight around the world!

Ever wondered why most Americans don't like tea? Have they ever even tasted a cup of tea properly prepared? Simon Jones is convinced that they haven't and gives a nice detailed description, taken from "The Hitchhiker's Guide to the Galaxy," of how to make a proper cup of tea. Enjoy!

Nursery rhymes are for children. The rhyme about Humpty Dumpty, however, is so famous that it's been used in literary and cinematic contexts as well.

Along with the rule of law, "due process" is an important element of U.S. constitutional law that gives anyone accused of a crime the right to defend him or herself and be judged by a fair and impartial judge or jury. There is a proper, legal way to do this, and that's called due process.

One way to prepare for Halloween is to make a jack o' lantern. In this segment, Sigrid explains what a jack o' lantern is, and how kids and adults celebrate Halloween.

The pumpkin is ready to carve out. Sigrid explains that pumpkins are indeed an edible type of squash and not just for making into jack o' lanterns. In fact, one pumpkin can become both a pumpkin pie and a jack o' lantern.

Sigrid finishes carving her pumpkin and places the candle inside so we can see the final effect of the jack o' lantern. Happy Halloween!

For so many of us, life has changed radically. We've had to learn new habits because of the coronavirus pandemic. Here are some of the changes we are having to make.

Everyone should stay home as much as possible to keep the coronavirus from spreading, but sometimes we have to go out for essential errands. What are some items to have on hand when we go out? Sigrid talks about five of them.

What a time to be learning English! Things are happening quickly in the United States and history is being made right now, so don't miss out on the words and expressions you need to know.

We keep seeing the "Black Lives Matter" slogan all around — what's it all about? Well, it's a long story. Here's part of the story in a nutshell.

Lots of English words can serve as nouns, verbs, or adjectives depending on the context. Sometimes even the pronunciation changes. Let's look at the slogan "Black Lives Matter" in both a grammatical and historical context.

In the United States, a presidential inauguration takes place every four years. The US now has a new president, Joe Biden, and Kamala Harris was sworn in as the first woman vice president. Part 1 of this video takes a look at the day before the inauguration.

Inauguration Day was special this year. In this video, Sigrid recalls some of the highlights and what was particularly striking to her as she watched it. Best of all, you can watch Amanda Gorman recite "The Hill We Climb" right here on Yabla!