Jellyfish the first vortex and pushes the animal forward, but the mesoglea is so elastic that the expansion is powered exclusively by relaxing the bell, which releases the energy stored from the contraction. Meanwhile, the second vortex ring starts to spin faster, sucking water into the bell and pushing against the centre of the body, giving a secondary and "free" boost forward. The mechanism, called passive energy recapture, only works in relatively small jellyfish moving at low speeds, allowing the animal to travel 30 percent farther on each swimming cycle. Jellyfish achieved a 48 percent lower cost of transport (the amount
The Thing About Jellyfish The Thing About Jellyfish The Thing About Jellyfish is a 2015 children's novel written by Ali Benjamin, her fiction debut. The book follows Suzy Swanson, the protagonist and narrator, who theorizes the death of her friend, Franny Jackson, was caused by a jellyfish sting. Suzy has just started the seventh grade, which is the second year at Eugene Field Middle School in fictional South Grove, Massachusetts. During their sixth grade year, Franny became interested in boys and started to join a more popular social circle than the sometimes awkward Suzy, who had been best friends with Franny starting shortly after