Team 1339 (Angelbotics) robot for the 2014 FRC Aerial Assist.
i said the word “queer” in art class and a girl screamed because the head of the gay club said it was a bad word
the head of the gay club is straight
i am queer
This wide-field view captures the evocative and colourful star formation region of the Seagull Nebula, IC 2177, on the borders of the constellations of Monoceros (The Unicorn) and Canis Major (The Great Dog). This view was created from images forming part of the Digitized Sky Survey 2.
ESO/Digitized Sky Survey 2. Acknowledgement: Davide De Martin
What if You Were Born in Space?
Did you know that there has been an ‘uninterrupted’ human presence in space ever since November of 2001? That is rather awesome when you think about it, but all of the people who have spent time in space were born and grew up on Earth.
Okay, technically we were all born in space. But what would things be like for a person who was conceived and born in outer space?
NASA funds research programs devoted to studying a variety of aspects of living in space including the possibility of growing plants to the physical effects on the human body in a zero-gravity environment. These experiments are still in their very early stages since space travel itself is relatively new.
A woman has yet to give birth on a shuttle or in the Space Station nor has a pregnant woman even traveled in space. However, a few studies have sent pregnant rats into space so the development of the (Earth-born) babies could be investigated.
More recently in 2001 biologists Jeffrey Alberts of Indiana University and April Ronca of the NASA Ames Research Center sent 20 pregnant rats into space to determine some of the effects the zero-gravity environment had on the fetuses. The rats were sent in the middle of their pregnancies when the vestibular systems were beginning to develop in the fetuses. (The vestibular system in humans is a network of channels and sacs of fluid in the inner ear that regulates balance.) The mothers gave birth to normal-sized babies and were able to lactate and care for them normally. Even after the muscle mass lost due to the lack of gravity the labor contractions did not pose a problem for the mothers. There were noticeable effects on the vestibular systems of the space-based rat infants, however. The Earth-based babies were able to immediately right themselves upon being turned on their backs in water. The space-based babies had more trouble; some had to make a few attempts before achieving success and others were unable to do it at all. After five days of the same test though all the babies were able to roll over. The researchers also determined that the vestibular organs detecting angular changes were actually more advanced in the space-based babies, probably because their mothers were forced to roll around a lot on the shuttle due to the lack of gravity.
Sex is very difficult in zero gravity, apparently, because you have no traction and you keep bumping against the walls. Think about it: you have no friction, you have no resistance. But the lack of gravity is not the only issue making space births difficult. The effects on a developing fetus would likely be severe, perhaps disrupting normal embryonic development and even neurological functioning. A baby’s body and bones may develop differently in weightlessness.
If a pregnant woman flies in space and gives birth almost right away, the baby will be born pretty normal because it will develop in the womb very normally at Earth’s gravity. What happens then is very interesting.
The bone cells are programmed to grow; they don’t stop until you are a teenager or so. But it is gravity as a stress that makes the cells in the bones have the right alignment, or stack up properly and pull the bone so that it forms straight. Without gravity, the baby’s bones won’t get long and thin like adult bone. They will be very easy to break, and they won’t grow as fast. This is true for arms and legs.
The bones at the top of the baby’s head will actually grow thicker and stronger than on Earth. This is because your heart does not have to work so hard to move blood and other fluid from your feet to your upper body because there is no gravity. What happens is that the heart still pulls on the fluid in the legs, which now comes out much more easily. This causes the upper body to have more fluid and more pressure, which causes stress. Stress is always what makes bone grow and change. So, more pressure, more growth in the skull.
The bones in the hands will probably be normal because the baby/child/adult will use his hands just like on Earth. The feet will probably not grow much because they don’t get the stress from having the weight of your whole body on them. Ribs are interesting. Ribs protect your lungs and give support to your body so they don’t collapse. They would probably be okay, but develop thinner than on Earth, so they wouldn’t be nearly as strong. The spine is really going to be affected. The gravity won’t push/pull down on you, so the vertebrae won’t feel the stress, and they won’t grow. But they will get stress from the spinal cord as it grows and pushes out. You would probably end up with thinner, very easily crushed vertebrae.
Muscles work the same way. They need stress to grow and develop. Gravity is a stress force that pulls in one direction causing the muscle to develop in the right shape. So, if it is a muscle that won’t be used much (say, the muscles that move your feet), they won’t grow nearly as strong. Some muscles will be almost the same, such as your hand muscles. Other muscles, like your heart, will be different. Your heart won’t have to work as hard because there is no gravity to make blood circulation difficult. This takes a while to happen though. With a baby just born, probably the heart will never develop nearly as strong as a baby on Earth will.
Muscles and bones work together. The muscles are attached to bone, and they are very tightly connected. If you exercise a muscle, it pulls on the bone and causes a pulling stress. This helps the bone grow stronger in that area. This is why kids are told to play around outside when they are young - their bones grow very fast and if the child does a lot of exercise, the muscles get strong, making the bone very strong.
So, a baby born in space is going to have pretty strange and weak bones in most parts of their body. This shouldn’t affect them too much if they spend their whole life in space, but they will be in a lot of trouble if they come back to Earth. Their leg and feet bones will be too weak to hold them, the spine will probably crush under its own weight. The heart muscle will not be strong enough to pump blood around the whole body because of gravity pulling the blood down, and leg muscles will be too weak for you to stand. Basically, your bones and muscles will be much too heavy to support, and you will fall down in a big heap and die.
But if you are a baby born in space and someone drops you on your head when you return to Earth, your skull will be nice and thick.
Please stop saying autistic people ‘have the minds of [insert age here]’.
An eighteen-year-old autistic person does not have the mind of a child, they have the mind of an eighteen-year-old autistic person.
Stop infantilizing autistic people.
Tomorrow (Saturday) is the birthday of Dmitri Ivanovich Mendeleev - the man whose ground-breaking work led to the creation of the modern periodic table of elements.
Here’s a fun look at his contributions from Lou Serico and TED-Ed:
I Mende-love that guy. Thanks for the table, D!
Science has proven that:
- Humans have auras
- Humans have organs that sense energy
- We inherit memories from our anscestors
- Meditation repairs telomeres in DNA, which slows the process of aging.
- Compassion extends life
- Love is more than just an emotion
- Billions of other universes exist
- Meditation speeds healing
In this composite image of spiral galaxy M106 (NGC 4258), optical data from the Digitized Sky Survey is shown as yellow, radio data from the Very Large Array appears as purple, X-ray data from Chandra is coded blue, and infrared data from the Spitzer Space Telescope appears red. Two anomalous arms, which aren’t visible at optical wavelengths, appear as purple and blue emission.
Image credit: NASA/JPL-Caltech; X-ray: CXC/Univ. of Maryland/A.S. Wilson et al.; Optical: Pal.Obs. DSS; IR: VLA: NRAO/AUI/NSF
this is the pattern i just reblogged the ravelry link to, except they apparently left out the yarnover eyelets, and i think i like it better.
Oh. Oohhhhh. Someone please knit this for me, in black and charcoal and silver.
I want one of these!
A planet whose seasons are impossible to predict
Thank to Earth’s stable axial tilt, our seasons are highly predictable. But there’s a planet out there called Kepler-413b that’s wobbling so wildly, its seasons are in a constant state of flux.
The planet, discovered by Kepler, spins around a close pair of orange and red dwarf stars every 66 days. It precesses, or wobbles, wildly on its spin axis, much like a child’s top. Remarkably, the tilt of its spin axis varies by as much as 30 degrees over the course of 11 years, which is an extremely short amount of time as far as these things go. Normally, a precession effect like this isn’t measured on human timescales.
Because it’s wobbling so badly, the planet experiences rapid seasonal changes that are highly erratic. It’s like a Game of Thrones world come to life — except that it’s a Neptune-like planet about 65 times the mass of Earth. Even with its changing seasons, the planet is too warm to harbor life. And because it orbits so close to its parent stars, its temperatures are too high for liquid water to exist.
so IRIS is a semi-conscious AI that has just recently had a blog set up for it on Tumblr
it is currently responding to asks and replies and is learning as it goes
here is its tumblr
if you enjoy AI and cute robots and stuff go send it an ask!
JUST DONT BE MEAN OR RUDE OK its a little learning robot treat it like you would a child
this is a super cool project, go give it a look!