Beryllium carbonate
Beryllium carbonate is a chemical compound with the chemical formula BeCO3.
Structures
There are three forms reported, anhydrous, a tetrahydrate and basic beryllium carbonate. The anhydrous form is reported to be unstable, decomposing to BeO and carbon dioxide, and requiring storage under CO2. The tetrahydrate is said to be formed when CO2 is bubbled through a solution of Be(OH)2 and is also reported to be similarly unstable.
Preparation
Basic beryllium carbonate is a mixed salt, which can be prepared by the reaction of beryllium sulfate and ammonium carbonate, and contains both carbonate and hydroxide ions, with formula Be2CO3(OH)2. It is believed that in the older literature this is probably what was referred to as beryllium carbonate.
Safety
It may cause irritation. It should be handled carefully since several related beryllium compounds are known carcinogens.
References
Booster (rocketry)
A booster rocket (or engine) is either the first stage of a multistage launch vehicle, or else a shorter-burning rocket used in parallel with longer-burning sustainer rockets to augment the space vehicle's takeoff thrust and payload capability. (Boosters used in this way are frequently designated "zero stages".) Boosters are traditionally necessary to launch spacecraft into low Earth orbit (absent a single-stage-to-orbit design), and are certainly necessary for a space vehicle to go beyond Earth orbit. The booster is dropped to fall back to Earth once its fuel is expended, a point known as booster engine cut-off (BECO). The rest of the launch vehicle continues flight with its core or upper-stage engines. The booster may be recovered and reused, as in the case of the Space Shuttle.
Strap-on boosters are sometimes used to augment the payload or range capability of jet aircraft (usually military).
Drop-away engines
The SM-65 Atlas rocket used three engines, one of which was fixed to the fuel tank, and two of which were mounted on a skirt which dropped away at BECO. This was used as an Intercontinental ballistic missile (ICBM); to launch the manned Project Mercury capsule into orbit; and as the first stage of the Atlas-Agena and Atlas-Centaur launch vehicles.
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A Crooked Nigga Too (Raphael Saadiq Remix)
by: 2PacYo 'Pac yo, I heard you got beat up by the police
Got a big fat lawsuit and everything
Niggaz just wanna know
if you still gon' be on some crooked-ass sheeeit
[2Pac]
Please tell me what's a nigga to do, and it's true
Ain't nuttin new, so I do, what I can to get through
Now first they had me trapped and now I'm pissed
A loaded AK-47 lay under my head so I don't trip
One motherfucker from the Underground
And Big Stretch buckin niggaz if they fuck around
Yo why I got beef with police?
Ain't that a bitch that motherfuckers got a beef with me
They make it hard for me to sleep
I wake up at the slightest peep, and my sheets are 3 feet deep
I guess it's hard for you to see
But now I'm pointin the finger at police
instead of them motherfuckers blamin me
I got the right to bear a pistol
And when the punk motherfuckers get to trippin I got shit too
And maybe then you'll see the truth (hell yeah)
But until then, I gotta do what I do
and stay a crooked nigga too
[Chorus: Raphael Saadiq]
I've got to do, what I'm gon' do
I'm gon' say what I'm gon' say
I'm gon' live how I live - how else you want a nigga to live?
I'm gon' do, what I do
I'm gon' say, what I say
I'm gon' live how I live - how do you want a nigga to live?
[2Pac]
Y'know you really can't say that ya blame niggaz
Fuck bein tame, set aflame, time to aim triggers
2Pac'll spark a revolution, fuck the Constitution
I want my bucks for restitution
This time you got a bigger problem
Time to face the niggaz from South Central, Oakland, Brooklyn and Harlem
And we ain't shootin at each other
That's my motherfuckin brother, so Dave Duke, run for cover
And all the bitches from the Klan
Come feel the wrath of a black man that doesn't smoke crack and
I don't drink St. Ides (fuck that!)
Genuine Draft, ganja ganja, and my fuckin tec-9
They know they scared to see us sober
Stop drinkin King Cobra, and niggaz'll take the world over
It's all up to you (up to you)
Blame the Korean, blame the jew, or be a crooked nigga too
[Chorus]
[2Pac]
Aiyyo! Why me? Play like Jasmine Guy and try me
I'll be damned if I die, come look at the rage in my eyes G
They got my homies in a jail cell
And it's the Rebel and the Devil, and one of us is goin to Hell
I got the whole place covered, with loc'd out brothers
And nuttin but love for each other
So motherfucker make a motion
I give a fuck, slice you up, and throw your ass in the ocean
Temperatures drop; see it's cool to shoot a nigga
but they hate it when we pop the cops
That's when they gettin petrol
You better watch your step or you'll be left on death row
But I learn to look ahead of me
Stay strapped watch your back keep your eyes on the enemy
We blowin up precincts and OOOH
You can't fuck with the crew, of crooked nigga too
[Chorus]
[Raphael Saadiq]
It's the coldest town from here to Georgia
(I'm a crooked nigga too)
It's the coldest town from here to Georgia
It's the coldest town from here to Georgia
(I'm a crooked.. crooked nigga too)
It's the coldest town from here to Georgia
Y'all gon' stop fuckin with me
[Chorus - repeat to fade]
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"I Am Not the CEO of Alychlo, and Hans Leybaert Is Not My Mother in Law" – Unifiedpost CEO Nicolas de Beco on Strategy, SaaS Transition, and Growth (Unifiedpost Group SA)
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