Titled

Described

[awwww-cute]

[voyagergifs]

[tamascotchi-deactivated20190101]

[halab1-deactivated20220711]

BYE

[adapto]

[awwww-cute]

[cyberimplant]

Leon Tukker

[astrowhat-deactivated20190316]

Happy 200th birthday to Ada Lovelace, the pioneer of programming!

Long may her legacy enrage me.

[astrowhat-deactivated20190316]

Reblogging this because after writing code that insults me as an error message and nothing working for no apparent reason for several hours I want to go on a computer-smashing spree again D: I hate MatLAB aaaaaah

[tuesdayblouse-deactivated202202]

[wegoingon-deactivated20181007]

[archenland]

Tetrodotoxin

Tetrodotoxin, frequently abbreviated as TTX, is a potent neurotoxin. Its name derives from Tetraodontiformes, an order that includes pufferfish, porcupinefish, ocean sunfish, and triggerfish; several species that carry the toxin. Although tetrodotoxin was discovered in these fish and found in several other animals (e.g., blue-ringed octopus, rough-skinned newt, and Naticidae) it is actually produced by certain symbiotic bacteria, such as Pseudoalteromonas tetraodonis, certain species of Pseudomonas and Vibrio, as well as some others that reside within these animals.

Tetrodotoxin inhibits the firing of action potentials in nerves by binding to the voltage-gated sodium channels in nerve cell membranes and blocking the passage of sodium ions (responsible for the rising phase of an action potential) into the nerve cell.

TTX is extremely toxic. The Material Safety Data Sheet for TTX lists the oral median lethal dose (LD50) for mice as 334 μg per kg. For comparison, the oral LD50 of potassium cyanide for mice is 8.5 mg per kg, demonstrating that even orally, TTX is more poisonous than cyanide. TTX is even more dangerous if injected; the amount needed to reach a lethal dose by injection only 8 μg per kg in mice.

[memecenterz]

[meladoodle]

I want you guys to know I met a puppy today

[mymodernmet]

Botanical Artist Uses Foraged Materials to Create Organic Works of Art

[nasa]

Solar System: 5 Things To Know This Week

Our solar system is huge, so let us break it down for you. Here are 5 things to know this week: 

1. You Call the Shots

This July, when the Juno mission arrives at Jupiter, it will eye the massive planet with JunoCam. What adds extra interest to this mission is that the public is invited to help Juno scientists choose which images JunoCam will take. Now is the time to get involved.

2. Dawn Delivers

We’ve seen several images now from the Dawn spacecraft’s new, close orbit around Ceres—and they don’t disappoint. Exquisitely detailed photos of the dwarf planet reveal craters, cliffs, fractures, canyons and bright spots in many locations. “Everywhere we look in these new low-altitude observations, we see amazing landforms that speak to the unique character of this most amazing world,” said the mission’s principal investigator.

3. Remembering the Visit to a Sideways World

Jan. 24 is the 30th anniversary of Voyager 2’s Uranus flyby. The seventh planet is notable for the extreme tilt of its axis, its lacy ring system and its large family of moons—10 of which were discovered thanks to Voyager’s close encounter. In fact, we learned much of what we know about the Uranian system during those few days in 1986.

4. A Decade in the Deep

The New Horizons spacecraft left Earth 10 years ago this week. Its long voyage into deep space is, even now, transforming our understanding of the outer solar system. New data and pictures from the Pluto flyby are still streaming down from the spacecraft. Pending the approval of an extended mission, New Horizons is en route to a 2019 rendezvous with a small, unexplored world in the distant Kuiper Belt.

5. Power at a Distance

Space exploration helped drive the development of practical solar cells, and now solar power has gone farther than ever before. Last week, NASA’s Juno spacecraft broke the record for the most distant solar-powered craft when it passed a distance of 493 million miles (793 million kilometers) from the sun. The four-ton Juno spacecraft draws energy from three 30-foot-long (9-meter) solar arrays festooned with 18,698 individual cells.

Want to learn more? Read our full list of the 10 things to know this week about the solar system HERE. 

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

[spaceexp]

The Voyage of a Lifetime: New Horizons Marks 10 Years Since Launch

Laurel MD (SPX) Jan 20, 2016 Ten years ago one of the great robotic explorers of our age - NASA’s New Horizons spacecraft - rocketed into the sky above the Florida coastline. The tiny probe - weighing barely 1,000 pounds - sped from Earth faster than any spacecraft before it, embarking on a 9.5-year voyage across more than 3 billion miles that culminated last summer in the historic first reconnaissance of Pluto and its fami Full article

[noobtheloser]

Hahehehuahahaha that tickl– OH– OH GOD, IT BURNS, AAAAHHHH!!! I do a lot of these. So do other people. Keep up with my work on facebook and twitter. 

[egberts]

my mom finally bought a toaster

[egberts]

why did this get notes

[hungry-hobbits]

we’re happy for you

[egberts]

its just a toaster

[egberts]

it’s been three years since i made this post. stop congratulating me on the toaster! stop asking me how the new toaster is doing!! i don’t know!! i haven’t lived with my mom in almost a year! i haven’t seen that toaster in months!! she might even have a new new toaster now!!! who knows!? not me!