A rocket (from Italian: rocchetto, lit. 'bobbin/spool') is a vehicle that uses jet propulsion to accelerate without using the surrounding air. A rocket engine produces thrust by reaction to exhaust expelled at high speed. Rocket engines work entirely from propellant carried within the vehicle; therefore a rocket can fly in the vacuum of space. In fact rockets work more efficiently in a vacuum and incur a loss of thrust due to the opposing pressure of the atmosphere.
Multistage rockets are capable of attaining escape velocity from Earth and therefore can achieve unlimited maximum altitude. Compared with airbreathing engines, rockets are lightweight and powerful and capable of generating large accelerations. To control their flight, rockets rely on momentum, airfoils, auxiliary reaction engines, gimballed thrust, momentum wheels, deflection of the exhaust stream, propellant flow, spin, or gravity.
Rockets for military and recreational uses date back to at least 13th-century China. Significant scientific, interplanetary and industrial use did not occur until the 20th century, when rocketry was the enabling technology for the Space Age, including setting foot on the Moon. Rockets are now used for fireworks, missiles and other weaponry, ejection seats, launch vehicles for artificial satellites, human spaceflight, and space exploration.
Chemical rockets are the most common type of high power rocket, typically creating a high speed exhaust by the combustion of fuel with an oxidizer. The stored propellant can be a simple pressurized gas or a single liquid fuel that disassociates in the presence of a catalyst (monopropellant), two liquids that spontaneously react on contact (hypergolic propellants), two liquids that must be ignited to react (like kerosene (RP1) and liquid oxygen, used in most liquid-propellant rockets), a solid combination of fuel with oxidizer (solid fuel), or solid fuel with liquid or gaseous oxidizer (hybrid propellant system). Chemical rockets store a large amount of energy in an easily released form, and can be very dangerous. However, careful design, testing, construction and use minimizes risks.
Hello po!
Okay lang po ba gamitin yung Smart Rocket Sim sa Openline na modem? Mas tipid kasi 899 lang ang unli. Currently using pldt sim medyo pricey ang unli nya 1300. Salamat po sa sasagot!
Sa mga naghahanp ng rocket sim at gustong makatipid ng konti or gusto ng pang back up sa Unli Data, try niyo sa Uncle John's/Ministop or 7-Eleven baka meron pa silang stock ng 699. Kakabili ko lang kahapon para pang back up kay unli data ko baka kasi biglang mawala.
799 na siya sa Lazada...
nawala kasi unlidata sa tnt ko, may blocking ba yung rocketsim?, balak ko bumili sa syapi tas ilagay sa b315 936, pano ba?, no ba dapat malaman sa rocketsim mga boss? ty.
So ito nanga nawala na unli Data sa smart ko. And nagbabalak ako bumili ng GOMO. And napansin ko globe pala ang gomo and medyo mild or sakto lang connection sa globe signal sa area ko. Mas okay ang Smart signal compare sa globe signal sa location kopo. So tanong ko lang po..
Ano ang mas...
Gumagana po ba ang unlifam sa smart rocket sim sa zlt modem na di pinapalitan ang imei? At yung unlidata 899 gumagana din po ba at wala po bang speedcapping?
Sobrang dismayado ko talaga bakit nag upgrade pako ng R291 from legendary b310as-938 k. 4 months gamit ko sa rocket sim ko na nakasalpak sa 938 no probs naman umabot na sa 1tb ang usage di man lang na block. While sa R291 5 days lang na block agad, more or less 5gb lang ang usage . Every hour...
Hello po. Not sure if nasa correct sub ako but so far kasi sa pag babasa ko, okay daw ang Rocket sim. So ask na lang din po ako for other inputs. Gusto ko sanang bumili ng sim na pwede mag unli data and walang speed limit. Pang back up lang sa wifi namin sa bahay. Salamat po sa mga sasagot :)
Magandang araw mga master.
Malakas rin po ba ang Unlidata ni TNT, no capping din kaya.?
Will try later sana , ang mahal na ng Rocket Sim e.
Salamat sa mga makakapansin.
nakareg. ako ng unli799 nakalagay sa modem with change imei, dati ok na ok ilang buwan din ginagamit halos 7months bigla nalang di makainternet ngayon, ganon din ba sa inyo?. paexpired pa nman load ko, nagdadalawang isip tuloy ako kung mag loload ulit sayang 799 kung di magagamit.
Good day.. ask ko lang po kung gagana si Rocket Sim 199 to PLDT Home Wifi? Or Fam Sim 199 nalang? same naman sila 5G pang backup internet ko lang sana. Thank you po
ako lang ba, or may nakaranas dito sa pag bagal ng internet speed tuwing 8PM to 10PM araw2x?
mga 2 weeks ko na naranasan to. usually ung lag sa online games lang maramdaman, |
pero streaming ok naman.
I purchased my 5G modem and rocket sim last month. Okay naman siya but when the promo expired, nagreload ako sa giga life app ng Unli Data 799. Based on my research common problem pala siya and usually the suggestion is to change the IMEI. However, walang nagwowork sa mga nasearch kong tutorial...
Help mga lods, kakabili ko lng ng smart rocket sim kanina, na register ko na ang sim may congratulation message na rin ako na received , pero walang net kanina pa pero may naka lagay na LTE sa taas , Unli data 15 Days to sya
Sa gigalife may error na nd pa daw activated
Hello po. Magtatanong lang po ako kung tunay itong text sakin ng SMART. Noong April 12 po kasi ang last load ng Rocket Sim ko. Hindi na ako nagload ulit ng UnliFam1099 kasi sakto na may Unli Data 399 yung isa kong sim kaya yun na lang muna yung nilagay ko sa router ko tapos ngayon po nareceived...
Sa mga may old variant pa na rocket sim, tanong lang po kung may capping ba yun unlidata nyo sa rocket sim, sa akin kasi parang 1 week lang tinagal ngayon puro capping sa 936 na modem nakasalpak ang sim.
Hello, may nakaencounter na ba dito ng after magload ng unli 799 ng rocket sim eh hindi na siya gumagana sa s10g? Though detected naman yung sim and nakalagay na valid siya pero walang internet service. Gumagana naman din yung gomo sim ko sa s10g and yung rocket sim sa android phone. Pashare...
Hello! I am seeking advice on which modem to purchase that can provide sufficient internet speed for my leisure activities while still prioritizing my school work. Would the B818 modem be a suitable option for me since I do not require extremely fast speed and I will be the only user? I have a...