Good Advice I Think

Travel at the speed of light (almost).

Three Ways to Travel at (Nearly) the Speed of Light

One hundred years ago, Einstein’s theory of general relativity was supported by the results of a solar eclipse experiment. Even before that, Einstein had developed the theory of special relativity — a way of understanding how light travels through space.

Particles of light — photons — travel through a vacuum at a constant pace of more than 670 million miles per hour.

All across space, from black holes to our near-Earth environment, particles are being accelerated to incredible speeds — some even reaching 99.9% the speed of light! By studying these super fast particles, we can learn more about our galactic neighborhood. 

Here are three ways particles can accelerate:

1) Electromagnetic Fields!

Electromagnetic fields are the same forces that keep magnets on your fridge! The two components — electric and magnetic fields — work together to whisk particles at super fast speeds throughout the universe. In the right conditions, electromagnetic fields can accelerate particles at near-light-speed.

We can harness electric fields to accelerate particles to similar speeds on Earth! Particle accelerators, like the Large Hadron Collider and Fermilab, use pulsed electromagnetic fields to smash together particles and produce collisions with immense amounts of energy. These experiments help scientists understand the Big Bang and how it shaped the universe!

2) Magnetic Explosions!

Magnetic fields are everywhere in space, encircling Earth and spanning the solar system. When these magnetic fields run into each other, they can become tangled. When the tension between the crossed lines becomes too great, the lines explosively snap and realign in a process known as magnetic reconnection. Scientists suspect this is one way that particles — for example, the solar wind, which is the constant stream of charged particles from the Sun — are sped up to super fast speeds.

When magnetic reconnection occurs on the side of Earth facing away from the Sun, the particles can be hurled into Earth’s upper atmosphere where they spark the auroras.

3) Wave-Particle Interactions!

Particles can be accelerated by interactions with electromagnetic waves, called wave-particle interactions. When electromagnetic waves collide, their fields can become compressed. Charged particles bounce back and forth between the waves, like a ball bouncing between two merging walls. These types of interactions are constantly occurring in near-Earth space and are responsible for damaging electronics on spacecraft and satellites in space.

Wave-particle interactions might also be responsible for accelerating some cosmic rays from outside our solar system. After a supernova explosion, a hot, dense shell of compressed gas called a blast wave is ejected away from the stellar core. Wave-particle interactions in these bubbles can launch high-energy cosmic rays at 99.6% the speed of light.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com. 

Lance Rubin's art

I just added a new piece of art to Saatchi Art!

CanU Come Ovr?

The internet is keeping score

Tumblr, we know you’ve been fighting valiantly to restore net neutrality. Whether you added widgets to your Tumblrs, or reblogged posts to spread the word to your followers, or contacted your reps asking them to keep the internet free and open as we know it—you’re helping. You’re doing it. Let’s keep that momentum up. 

BattleForTheNet.com (@fight4future) is letting Congress know that the internet is keeping score of every Congressperson who is and is not supporting the restoration of net neutrality. 

Right now you can visit that scoreboard and easily look up whether or not your reps support the Congressional Review Act resolution. 

This CRA will restore the net neutrality rules the FCC dismantled back in November 2017. They have 177 signatures, but need 44 more. You can help make that happen. This grassroots effort is working. Just two days ago Rep. Mike Coffman listened to his constituents from Colorado and became the first Republican to support the Democrat-led CRA. Keep putting that same pressure on your congresspeople. Urge them to sign the petition. If your congressperson has already pledged to support the CRA, reblog this post, add the new widget to your Tumblr (just copy and paste the small line of code from Battle For The Net right into the customize theme page on the web), and shout out what’s happening on all of your social media accounts. We have to spread the word.

Keep going, Tumblr. This matters, and you’re making a marked difference.

If this 1908 photograph reminds you of a certain Dutch painter…you’re right! Photographer Guido Rey was inspired by Vermeer’s 1600s compositions.

“This Is Why You’re Always So Tired”

Dream, Create, Believe...doodle, fold paper, cut paper, scribble ..create something, it will lift your heart and mind to new heights.

ZumiWaa - what are you doing?

Thank you!

🍂🍄🍂🍄🍂🍄🍂🍄🍂🍄🍂🍄🍂🍄🍂🍄🍂🍄

May your autumn be cozy, refreshing, and full of love.

🍂🍄🍂🍄🍂🍄🍂🍄🍂🍄🍂🍄🍂🍄🍂🍄🍂🍄