Lightening Vs Lightbulb

“James Hart Stern, 54, is the new president of the National Socialist Movement, a group whose members wear uniforms reminiscent of those worn in Nazi Germany, celebrate Adolf Hitler and organize public rallies across the county.

Hace unos dias vi una serie de gifs de Marie Kondo explicando que a la hora de ordenar nuestra ropa debemos elegir la que nos produce felicidad, y para no sentirnos mal por la ropa que queremos botar, agradecer el tiempo que estuvo esa prenda estuvo con nosotros y dejarla ir..

Esto me llamo la atención y luego en Netflix descubri que habia una serie de ella, donde va a casas de personas y las ayuda a organizar. Me gusto su método y quise compartir algunos de sus consejos con ustedes. Quien sabe. Siempre se aprende algo 😉

An old, decrepit laundromat gets replaced by an upscale bakery? And people are mad? It’s not that the poor hate organic vegan cupcakes, it’s that most of us don’t have a way to do laundry in our own home.

Run-down corner stores replaced by hand-made designer clothing boutiques? We don’t hate your eco-fabric shawl, but I can’t eat that for dinner after work like I could have a can of beans I grabbed from that corner store when I don’t have time to take the bus to the real grocery store after work.

What gentrification brings in and of itself is not typically bad, it’s that gentrification brings institutions of leisure and pleasure and makes it so that the poor have to go farther out of their way for basic necessities. It turns low-income living spaces into local tourist attractions. It can even create food deserts by putting restaurants, grocery stores, etc. in that the majority of the lower class cannot afford.

“Increases your chances by 80%” does not mean “there is now an 80% chance”. 

If your chances were previously 10%, your chances are now 18%, not 90%. 

if your chances were roughly 1%, they’re now just slightly less than 2%. 

                       !!!!!!!!! BREAKING NEWS !!!!!!!!!!

The Tennessee Supreme Court ruled former sex slave Cyntoia Brown MUST serve 51 years in prison before she is eligible for parole.

According to them:

“In today’s unanimous decision, the Tennessee Supreme Court explained that, under state law, a life sentence is a determinate sentence of 60 years,” the court wrote. “However, the sixty-year sentence can be reduced by up to 15 percent, or 9 years, by earning various sentence credits (good behavior. & getting involved in prison based education programs while incarcerated) Therefore, the Supreme Court concluded that a defendant serving a life sentence for a first-degree murder committed on or after July 1, 1995, may be eligible for release after serving at least 51 years of the sentence.“

For those of you who haven’t yet caught up to this story:

Cyntoia Brown was a 16 yr old girl, who at the time of the incident was living in a room at a Nashville InTown Suites with Allen (the man who propositioned her for sex) because her pimp and boyfriend Garion McGlothen, nick-named “Kut Throat,” insisted that she needed to earn money.

Kut Throat abused her physically and sexually throughout the approximately three week period in which she lived with him.

After Allen took her to his house, he showed Cyntoia multiple guns, including shotguns and rifles. Later in bed, as she described in court, he grabbed her violently by the genitals, his demeanor became threatening and, fearing for her life, she took a gun out of her purse and shot him.

IF YOU WANT TO HELP:

You can sign this petition 

Call Governor Bill Haslam (615)-741-2001. she has a Clemency hearing May 23rd. DEMAND JUSTICE!!

DON’T FORGET TO FOLLOW US ON INSTAGRAM

34 year old me’s brain: remember when you were in 2nd grade and you told your teacher that her nose had the same shape as your grandma’s

LSS I wrote him a letter and gave to him during passing period. I made a mad dash away...but my sweater got caught on the door and ripped, loudly. Then I had to struggle to unhook myself or undress.

I silent screamed last night because I am still just as mortified to this day😔

I made this sign to protest the Dakota Access Pipeline, but I guess its relevant again.

Things they would like

Food they would eat

Clothes they would wear

Places they like to go

Places they dream of going

Elements of their culture

Elements of their religion (if they have one)

Where they live

Color palettes that fit them

Their aesthetic

Quotes that relate to them

So…

How many cheeseburgers do I need to cast Feather Fall?

(Disclaimer: I am a mathematician, not a physicist. If I use a formula wrong somewhere, feel free to let me know and we can politely debate science)

Assumptions:

We have a friend, let’s call him Mike (sorry anyone reading this who is named Mike) who is falling at terminal velocity. We’re assuming gravity is the same as on earth (because we’re lazy) and we’re rounding it to 10 m/s² (because we’re lazy- it’s actually 9.807 m/s² but that would mean i need to go get out a calculator so 10 it is!).

So.

To get the force that Mike is experiencing, we need to multiply his acceleration (10 m/s²) by his mass (which we’re assuming is about 70 kg, the average mass of a person). So the force he’s experiencing is 10*70 = 700 Newtons of force on Mike. We need to counter this force if we want Mike to stop falling towards the ground. We also ideally want to slow him down enough so that he is not falling at terminal velocity when he hits the ground, because that would kill him. Terminal velocity on earth is about 54 m/s; with a parachute this goes down to about 7-8 m/s, which is what we’re aiming for. If we decelerate at 10 m/s² we can achieve this in about 5 seconds. A human can withstand acceleration of about 49 m/s²; bear in mind that we’ve got to take existing gravity into account. We could decelerate at 39 m/s², which slows us down in a couple of seconds, but that is going to push the limits of what Mike can withstand. It depends how close he is to the ground as to how fast we want to decelerate- if he’s too close, we might not have the time to slow him down fast enough without killing him anyway.

We’re going to assume he’s about 500 metres up in the air; he’s high up enough that we’ve got time to slow him down, but he’s going to hit the ground in about 10 seconds if we don’t do something about it. Time for some maths!

How much energy does it take to stop gravity?

Now, we want to know the potential energy related to Mike’s current fall, because this will tell us how much energy we need to counteract this. He’s currently got 700 Newtons of force pulling him down; this means that for every metre he falls, it releases 700 Joules of potential energy. This means that, to stop the force of gravity from making him accelerate any faster, we need to send 700 Joules of energy to push him in the other direction- and this is the amount we need to send every second while he’s up there, because gravity does not have an off switch.

So, 700 Joules per second to start with. Air resistance is going to deal with this until we start slowing his fall, but once we start slowing him down we are going to need to keep up the 700 Joules per second until he hits the ground, otherwise he will start to accelerate again. That’s already going to be quite a lot of energy; we certainly don’t want to leave Mike suspended in midair for a long time.

How much energy do we need to slow his fall?

So, the 700 Joules per second means that Mike is no longer moving any faster towards the earth. We still need to deal with getting our speed of 54 m/s down to 7 m/s so that Mike won’t die when he hits the ground. 

If we decelerate at 10 m/s² for 5 seconds (bringing us down to 4 m/s because a. slower is better and b. I’m too lazy to fetch the exact number of seconds we need) (ignoring what we’ve already done to take out the effects of gravity), we will use 3500 Newtons of force. In that time we will fall (54^2 - 4^2)/2*10 = (with the help of a calculator) 

145 metres. Then we can calculate the work done, which is force * distance = 3500 * 145 = 507500 Joules.

Putting it all together

So, we have an initial output of energy to slow down Mike, for 507500 Joules, and we need a good 145 metres of space before he hits the ground to do this. Then while we’re doing that we need to expend 700 Joules per second to counteract the effects of gravity, which will be happening for at least 5 seconds while he’s decelerating, possibly longer once he’s slowed down and not at the ground yet. 

Because Mike is our friend and we’re very conscious about the fact that we don’t want to accidentally wait too long before we slow the fella down, we’re going to start slowing Mike down now. We have an initial output of 507500 Joules to slow him down, plus another 700 * 5 = 3500 Joules for counteracting gravity while he decelerates. that’s 510100 Joules so far for anyone keeping score at home.

So Mike is now floating down at a leisurely 4 metres per second. He’s still 500-145 = 355 metres up in the air, so he will be travelling down for another 89 or so seconds. That’s another 62,300 Joules of energy to stop gravity while he’s decelerating, making our grand total to be 572400 Joules to get Mike safely to the ground.

Where are we getting this energy?

We’ve been working in Joules, but most foods are defined in KiloJoules, so let’s convert: we have to find 572.4 kJ to stop Mike from hitting the ground. For context: a cheeseburger has about 3000 kJ, so we can reliably save 5 Mikes on a happy meal (assuming we eat something as well- your body needs fuel too!) (this also says something about how insanely weak the force of gravity is).

Of course, this essay doesn’t take into account what energy requirements you need to project energy, or send energy that far, but here’s a comforting thought; Mike is going to live, thanks to you!

Okay, what about if we instead conjure up a parachute for Mike to use? That means we don’t need to concentrate on slowing him down for a minute and a half, we can just let the parachute do the heavy lifting, right?

(This of course assumes that Mike knows how to operate the parachute you summon for him, and that he has enough time to put it on/use it before he hits the ground)

We can create mass out of energy, using Einstein’s famous equation:

E=mc²