Throwing a paper together just days before a conference, the grad student rides a turbulent wave of shame and exhilaration.
d e v o n

Andulka

#extradirty
Claire Keane

Discoholic 🪩
tumblr dot com

Janaina Medeiros
Show & Tell
"I'm Dorothy Gale from Kansas"
RMH
Today's Document

Kiana Khansmith
ojovivo
Lint Roller? I Barely Know Her
Jules of Nature

Kaledo Art

oozey mess
Monterey Bay Aquarium
No title available
KIROKAZE

seen from Singapore

seen from United States
seen from United Kingdom

seen from Germany

seen from Brazil
seen from Argentina
seen from United States

seen from Germany
seen from United States

seen from United States
seen from United States
seen from United States
seen from United States
seen from United States
seen from United States
seen from United States

seen from United States

seen from Germany
seen from United Kingdom
seen from United States
@rollinginthehiggs
Throwing a paper together just days before a conference, the grad student rides a turbulent wave of shame and exhilaration.
5 years of grad school have taught me intelligence means very little in scientists you mostly just need to be obsessive and slightly deranged
Sailor Aesthetics
Dinghy Sailor: smell of rubber and salt. lots of bruises. wet fibreglass. owns lots of waterproof stuff. constantly comments on the wind. good at jury-rigging. vintage windbreakers. carries shackles and ring dings.
Keelboat Sailor: knows how to pack light. watches seabirds. can sleep anywhere, anytime. climber. likes to tie things. steps lightly. weather savvy. constant rocking.
Day Sailor: naps in sunshine on warm decks. bare feet. steady heeling. teak. salmon-colored bermuda shorts. the sound of flapping sails.Â
Schooner Sailor: climbing everything and anything. constant state of exhaustion. tar. big knives. always working. the boat trying to kill. galley duty. rowing in the evenings. drinking and laundry and 45 minutes showers on your day off
A picture from the local newspaper. You can see me putting the halyard on the spinnaker. Â
NASA Releases Trove of Over 8,000 HD Photos from the Apollo Moon Missions
*nervously calls crush bro*
buy a fountain pen
my intrusive impulses have started sending me anonymous asks on tumblr
i love people who get excited about stars
IG: tristamateer
Two years ago today I was given this Lamy 2000 fountain pen as a gift for one year of sobriety. Today April 11, the day between the anniversary of my father’s death and his birthday, I now celebrate my third year sober. I am grateful for many things in my life. And many things mean a lot in my life. I miss my father and I often wonder what he would think of Hamilton. He’s been gone for 17 years now. I am 32, so he’s been gone for more than half of my life, but that first half with him was such a good life.
He once got tickets to see Jesus Christ Superstar. The seats were discounted because one of them was halfway behind a pillar. So they were sold for less as “obstructed view” seats. It was the only way he could afford to take me and he told me it was important that I see it. He wasn’t a religious man. He didn’t believe in God and I’m sure he just thought of Jesus as a man, but he knew that play was important. And he knew it would mean something to me. And it did. I saw it again, years later and it still resonates in my soul.
He was so passionate about me having a life full of music, theater and art. He was an immigrant. He moved here from Germany and spent his life working his ass off to provide for his family. Years of poor health and hard labor took their toll on him and his heart gave out on him one night in bed as he slept.
That night changed the entire course of my life forever. For better or for worse. There were drugs and there was drinking. There were men and there were mistakes. I AM lucky to be alive right now. I had many last times for drinking and drugs. Many final drinks or last nights out on the town.
This time though… On that day 3 years ago, something felt different. Something felt powerful. And my life is so much better now and I hope I never go back.
On the direction of the cross product of vectors
One of my math professors always told me:
Understand the concept and not the definition
A lot of times I have fallen into this pitfall where I seem to completely understand how to methodically do something without actually comprehending what it means.
And only after several years after I first encountered the notion of cross products did I actually understand what they really meant. When I did, it was purely ecstatic!
Why on earth is the direction of cross product orthogonal ? Like seriously…
I mean this is one of the burning questions regarding the cross product and yet for some reason, textbooks don’t get to the bottom of this. One way to think about this is :
It is modeling a real life scenario!!
The scenario being :
When you try to twist a screw (clockwise screws being the convention) inside a block in the clockwise direction like so, the nail moves down and vice versa.
i.e When you move from the screw from u to v, then the direction of the cross product denotes the direction the screw will move..
That’s why the direction of the cross product is orthogonal. It’s really that simple!
Another perspective
Now that you get a physical feel for the direction of the cross product, there is another way of looking at the direction too:
Displacement is a vector. Velocity is a vector. Acceleration is a vector. As you might expect, angular displacement, angular velocity, and angular acceleration are all vectors, too.
But which way do they point ?
Let’s take a rolling tire. The velocity vector of every point in the tire is pointed in every other direction.
BUT every point on a rolling tire has to have the same angular velocity – Magnitude and Direction.
How can we possibly assign a direction to the angular velocity ?
Well, the only way to ensure that the direction of the angular velocity is the same for every point is to make the direction of the angular velocity perpendicular to the plane of the tire.
Problem solved!
The derivative of velociraptor is acceleraptor
Just Some More Equations I Think Are Influential
Fourier Transform
Developed by Joseph Fourier a French mathematician, the Fourier transform has been all-important to understanding complex waves such as human speech. The Fourier transform breaks up complex functions into a combination of simple waves. It has been vital to modern signal analysis and physics.
Euler’s Formula
Developed by Leonhard Euler, this equation has been extremely influential to several fields including physics, mathematics, and engineering by relating the mathematical constant e, trigonometry, and complex numbers.
Normal Distribution Function
With its well-known bell curve graph, the normal distribution is extremely important to statistics for describing behaviors of large groups. This statistical technique is so important that it is used in many areas of science.Â
09.30.17 // 1:59 PM
Productive Saturdays are my fave. Bike-run training in the morning, coffee and studying in the afternoon. I hope everyone’s having a great weekend! ✨
That’s it. That’s the best tweet. We can all go home now.