Black Brant IX onboard camera on NASA’s FOXSI mission

[@SciNewsRo]

Sounding Rockets explained kzbin.info/www/bejne/qmmqZIyGesitp8k Rocket engine tests / Rocket test flights kzbin.info/aero/PLpGTA7wMEDFhzEojNj3aJSY8TLxG0-2iu Sounding Rockets kzbin.info/aero/PLpGTA7wMEDFjRg8yeHzPr1-dFwfKAiO-L

[@ryannpyoung1]

I was wondering... what causes the rocket to stop spinning at 1:07? Retro rockets? Or something else?

[@DanielVGonzalez]

Actually it is a very simple system of two weights tethered to the rocket. They are released and due to the change of mass distribution, they stop the angular momentum (same as an ice skater speeds or slows down the rotation with his/her arms)

[@PeterKocic]

google yoyo-despin

[@RME76048]

Not sure what the BB series use for guidance; used to be Saab a *long* time ago. Looked like when they were just a little before going exoatmospheric the payload guidance fins went nuts!

[@nielsm.2147]

Thx...watched that drunk. Mistakes have been made

[@matheusbarbosa700]

Hahaha lol

[@MattCJohnson]

Looked but had no luck finding the information. Does anyone know definitively what lens the video is shot with?

[@Shadowkey392]

Aside from that it's a fisheye lens? no idea.

[@andrew1717xx]

Stellar or Interstellar feel at the end. Take your pick.

[@Outland9000]

1:05 - 1:10 How is the fast spinning stopped so suddenly?

[@Gigasimo456]

Yo-yo de-spin. They transfer the angular momentum to some weights and then they detach them.

[@mziqbal2003]

This is an spectacular launch 👌

[@peterhaitch7507]

at 1 18 was that a 2nd launching that day? iow 2 rockets up at the same time?

[@chrismoule1]

This may be a dumb question, but can't u angle the fins to stop the spin?

[@janrdoh]

You want the spin it is what gives a stable trajectory.

[@pestypig]

@@janrdoh or tears the rocket apart..

[@janrdoh]

Sure maybe the hobby rockets.

[@RME76048]

Much like a rifle's barrel has rifling that causes the bullet to spin and reduce what is known as 'trajectory dispersion,' the cant angle on the fins accomplished the same thing.

[@Glenn08CRF]

...and I'm dizzy now.

[@babarframanadamada]

And where is the lemon tree?

[@ius8998]

So, Earth is hiperbolic?

[@Dee-Jay]

LOL! Yep, it looks like. ;-)

[@SeldomPooper]

"FOXSI reached an altitude of about 189 miles" Where did you get that info from ? Its such a thin and small rocket.

[@SciNewsRo]

From NASA.

[@SeldomPooper]

give me link. i don't believe it. Such a small rocket won't go 189 miles.

[@SciNewsRo]

In the first paragraph: "The payload flew to an altitude of 189 miles before descending by parachute." www.nasa.gov/feature/goddard/2018/nasa-funded-rocket-to-view-sun-with-x-ray-vision

[@SeldomPooper]

Ah i was wrong. Didn't think of the fact that large rockets are used to put things in orbit by going horizontal. This one just stayed vertical throughout and then descended :D

[@SciNewsRo]

Sounding Rockets explained kzbin.info/www/bejne/qmmqZIyGesitp8k

[@dantebregan5864]

Por que gira tanto ? Tan rápido salió al espacio ??? Hay algo raro en este vídeo.

[@RME76048]

No hablo español pero lo intentaré (with the help of an English-Spanish translation tool): Al igual que el rifle en el cañón de una pistola hace girar una bala, las aletas del cohete están inclinadas y realizan la misma función. Esto reduce la dispersión de la trayectoria (mantiene el cohete volando a lo largo del camino deseado). Una vez que las distintas etapas se queman y la carga útil está en el espacio, un dispositivo conocido como mecanismo de desplazamiento del yo-yo detiene la marcha de la carga útil.

[@IbnBahtuta]

Awesome

[@mexps8093]

checkmate flat earthers!

[@monkeydgarp6394]

how?

[@carterjmd]

Natural Remedy Wizard because it shows a round earth? Unless this is fake or cgi or fish eye lens or whatever the fuck

[@Tonymelenas1]

Find in Google Earth 33°22'42.6"N 106°13'16.3"W It can't be at that height.

[@Dee-Jay]

@@monkeydgarp6394 because it proves that earth is not round ... nor flat, but hyperbolic. ;-)

[@WarlpiriMan]

Magnificent but I'd lose my lunch!

[@SciNewsRo]

It’s only capable to launch some lunches anyway :-) kzbin.info/www/bejne/qmmqZIyGesitp8k

[@louisramos2473]

Hater will say it's fake

[@RME76048]

Well, it was, wan't it? That was just an Estes rocket with a D12-7 following a D12-0 and the kid that built it did a really bad job on his balsawood fin alignment. He glued a fisheye lens over his Cineroc and that makes the (obviously) *FLAT EARTH* look like it has a curve. LOL

[@Tonymelenas1]

@Louis Ramos Find in Google Earth 33°22'42.6"N 106°13'16.3"W It can't be at that height.

[@DenpaKei]

Oh look. Curves

[@RadloffKursani]

Wat dea enjen😊

[@RanulfoKnox]

2 flat earthers downvoted this