Raft (or vest) but if the the Take 5 puzzle (issue 37 - 2010) the answer is Raft.
A lifebuoy or life preserver is a floating device used to help people stay afloat in water in case of emergencies.
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A boom is a floating spill containment system. It can be made of ubber, wood or any other buoyant material and fabric.
Graphics Tablet
Airways, Breathing and CPR (used to be circulation)
The Z1 introduced the computer architecture on which modern computers are designed. The device was used to perform decimal floating point calculations during WWII.
A large flat bottom ship is known as a barge. Barges are commonly used to transport goods on rivers and canals due to their flat design, which allows for easy navigation in shallow waters. They are also used in construction projects and as floating platforms for events or equipment.
The word float can be a noun, for something that floats. The noun for the activity of floating is flotation. (it is sometimes used specifically as an noun adjunct, e.g. flotation device) The word for floating objects may be flotage, or more commonly flotsam.
Rest Immobilize Cold Elevate It's used for treating bruises and sprains.
who was trying to obtain a lifesaving drug for his wife
A flat-bottomed flask is a glassware used in chemistry for containing and heating liquids. It has a flat bottom to provide stability when placed on a flat surface like a lab bench or a heating device. The flat design allows for even distribution of heat and prevents tipping over during heating or mixing.
floating gardens are gardens made by the Aztecs.