If available, inhabitants may take potassium iodide at the rate of 130 mg / day per adult ( 65 mg / day per child ) as an additional measure to protect the thyroid gland from the uptake of dangerous radioactive iodine, a component of most fallout and reactor waste.

If a reactor needs to be frequently shut down, NaK is used ; due to it being liquid at room temperature, cooling pipes do not freeze.

If the nuclear reactor is left on the ground and its energy transmitted to the spacecraft, the weight of the reactor is removed as well.

If cooling fails during this post-shutdown period, the reactor can still overheat and meltdown.

If heavy water is used, it is possible to operate the reactor with natural uranium, but the production of heavy water requires large amounts of energy and is hence expensive.

If helium is used, because it is lighter than air, air can displace the helium if the reactor wall is breached.

If the heat from that reaction is not removed adequately, the fuel assemblies in a reactor core can melt.

If the reactor coolant pumps are not running, the upper part of the core will be exposed to a steam environment and heatup of the core will begin.

If necessary, the emergency power supply allows the safe shut down of the nuclear reactor.

While criticality at fast energies may be achieved with uranium enriched to 5. 5 weight percent Uranium-235, fast reactor designs have often been proposed with enrichments in the range of 20 percent for a variety of reasons, including core lifetime: If a fast reactor were loaded with the minimal critical mass, then the reactor would become subcritical after the first fission had occurred.

If all of the independent cooling trains of the ECCS fail to operate as designed, this heat can increase the fuel temperature to the point of damaging the reactor.

If the coolant is a liquid, it may boil if the temperature inside the reactor rises.

If the void coefficient is large enough and control systems do not respond quickly enough, this can form a positive feedback loop which can quickly boil all the coolant in the reactor.

If the reactor overheats, thermal expansion of the metallic fuel and cladding causes more neutrons to escape the core, and the nuclear chain reaction can no longer be sustained.

If the reactor vessel developed excessive heat or lost electric power to the air cooling, the plug would melt ; the FLiBe would be pulled out of the reactor core by gravity and criticality would cease as the salt lost contact with the graphite.

If the reactor is shot enough the turrets will cease firing for a short amount of time.

If the refiner wants to produce alkanes ( i. e., hydrocarbons present in natural gas, gasoline, and diesel fuel ), the coal gas is collected at this state and routed to a Fischer-Tropsch reactor.

If the primary cooling loop were to be somehow suddenly stopped, or if the control rods were suddenly removed, the metal fuel can melt as accidentally demonstrated in EBR-I, however the melting fuel is then extruded up the steel fuel cladding tubes and out of the active core region leading to permanent reactor shutdown and no further fission heat generation or fuel melting.

If no cooling system is working to remove the decay heat from a crippled and newly shut down reactor, the decay heat may cause the core of the reactor to reach unsafe temperatures within a few hours or days, depending upon the type of core.

If our national interest lies in being able to fight and win a war rather than committing national suicide, then we must take a much more penetrating look at ballistic missiles.

If the fireball is comparable to the size of atmospheric density scale height, the movement of the cloud will be ballistic, overshooting large volume of denser air to greater altitudes.

If you took on this job, " you could be the world's greatest authority on Tweetle Beetle battlistics, if you study Tweetle Beetles and their ballistic characteristics.

If the electron were in a vacuum, it would be accelerated to faster and faster velocities ( called ballistic transport ).

If the occurrence of a minimum in the absolute ( tangential ) velocity is used as a heuristic for segmentation, the pen-tip trajectory can be subdivided into segments corresponding to ballistic strokes.

If desired, the 470 Capstick can be used to create a ballistic twin to the. 470 Nitro Express, pushing a bullet at while generating low pressure.

If the Americans tried to bargain with the Soviets after becoming aware of the missiles, Khrushchev could demand trading the missiles for West Berlin.

If current trends continue, missiles will replace gun systems completely in " first line " service.

If the Soviet Union launched a sneak attack and the US did not respond immediately, the majority of their missiles and strategic bombers might be caught on the ground.

If we are attacked by Egypt ( after an Islamist revolution in Cairo ) and by Syria, and chemical and biological missiles slam into our cities, and at the same time Israeli Palestinians attack us from behind, I can see an expulsion situation.

If beyond-visual-range ( BVR ) missiles can be defeated, pilots can press the attack and very quickly arrive at the within-visual-range ( WVR ) arena.

If the player misses five missiles, the game ends.

* If you find a special Apache military helicopter, shooting missiles at buildings may cause a Fire mission and shooting bullets at people or cars may also cause a Car Fire mission or a MEDEVAC mission.

If the Cold War had continued, then many of these systems could have seen deployment: the United States got as far as developing working railguns, and a laser that could destroy missiles at range, though the power requirements of both were phenomenal, and the ranges and firing cycles utterly impractical.

If the target maneuvers, the guidance system can notice this and update the missiles ' course continuously to counteract the maneuvering.

Many missiles employing this type of guidance have an extra trick up their sleeves ; If the target does attempt to use noise jamming, they can in effect turn into an anti-radiation missile and home in on the target's radiation passively.

If this limit expires before the base is destroyed by Jetman, two missiles are launched from the base-one for the Earth, the other for Jetman's rover ( hence its almost invulnerability ).

Beware: If the enemy helicopter is destroyed, any other of your guided missiles in flight will simply shut down and fall to the ground, if one falls on your copter it will be destroyed.

" If I've ever had a magic moment in my life, it was popping that tape in ," said Jesperson, " I didn't even get through the first song before I thought my head was going to explode ".

* The song Believe Me If All Those Endearing Young Charms is often used in a famous gag in a number of Warner Brothers cartoons, usually involving a piano or Xylophone rigged to explode when a certain note is played.

If the soldier did not immediately launch the grenade … The grenade will time-out and explode.

If this star were to explode as a type Ia supernova at its estimated distance of 3300 light-years, it would have an apparent magnitude of around-9. 3, about as bright as the brightest Iridium ( satellite ) flares.

If Berezovsky felt that " there are some people else beyond Putin, some fearsome siloviks who can explode houses, they Family would throw Putin away, as a hot potato ".

If struck by a power that would usually kill a mortal ( for example, an energy ball or particle acceleration ), their bodies will explode into orbs then reform relatively unharmed ; they can, however, be knocked unconscious.

If through destiny I should lose, there are in my arsenal five tons of dynamite which I will explode with my own hand.

If the satellite doesn't receive the messages from the transmitter 14 Type-240 Blast Plasma based nuclear warheads in the airports of the Northern, “ pro-black ” capital cities of the United States will explode, destroying these cities, and making way for a new, racist, Confederate America.

If startled, these birds explode into short rapid flight, called " flushing ".

If the bottle ruptures, the amount of compressed air inside it ( and thus the potential energy ) will be very small, and the bottle will not explode.

If it is not opened or there is a delay in opening it, the letter will start smouldering, explode violently, and shout the message out even louder than normal.

If a player is on an arrow when a mine passes through the step zone for that arrow, it will explode and health will be lost.

If this precaution is not observed, the player's evaporation of the Lake causes the Mine ( s ) therein to explode, each with the same damaging effects as a Bomb.

:" If a man thinks he needs sex or is going to explode, it is better to find a prostitute than seduce or rape a girl.

If " Game Gore " ( an option on some consoles ) is switched on, then a defeated character's heart will explode into a bloody mess, and their brain will dissolve to ashes.

If an explosive is too sensitive, it may go off unexpectedly, so most commercial explosives are formulated to be stable and safe to handle and will not explode if accidentally dropped, mishandled, or exposed to fire.

If the car hits the donkey, both car and donkey explode, and parts of the graphics are scattered to the four corners of the screen to the sound of a short monophonic tune played through the PC speaker.

If the gases were flammable, they would explode, and increase the pressure within the gas chamber.

If one considers that 1 million out of 1. 5 million of the shells fired in the preliminary bombardment were shrapnel which could blow aside barbed wire but not harm enemy soldiers under cover, and that many of the remaining high-explosive shells failed to explode due to poor quality of mass-produced fuses, it is evident in hindsight compared to later battles that the bombardment had little chance of destroying a significant percentage of defenders.

If Swain were to somehow get out of the Library the band will give him fifteen minutes to get back inside, and will explode if he fails to do so.

If the anchor cable would not part, the mine and the paravane would be brought together and the mine would explode harmlessly against the paravane.

If the boost is held when the engine reaches its critical temperature, it will explode.

If Lugae is defeated before the player destroys Barnabas, then Barnabas will explode, damaging the party.

If the white dwarf accretes enough mass to reach the Chandrasekhar limit, about 1. 4 solar mass, it may explode as a Type Ia supernova.