By Michael Nicoll Yahgulanaas

Hummingbirds have lengthy been an emblem of knowledge and braveness. during this captivating tale, a hummingbird makes a valiant attempt to place out a raging hearth that threatens her woodland domestic — trip after journey, her beak is crammed at any time when with just a drop of water. Her efforts convey her wooded area partners that doing anything — something — is healthier than doing not anything at all. The hummingbird parable, which originates with the Quechuan humans of South the USA, has develop into a talisman for environmentalists and activists all over the world dedicated to creating significant swap. This retelling, enlivened by means of Michael Nicoll Yahgulanaas’ impressive Haida-manga illustrations, is appropriate for every age of would-be activists. Although environmental accountability frequently sounds like an overpowering activity, The Flight of the Hummingbird indicates how effortless it really is to start and how nice the impression can be if everybody simply did what they could.

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Additional resources for Flight of the Hummingbird: A Parable for the Environment

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Longo: J. Eur. Ceram. , Vol. 28 (2008), p. 505 [6] J. Fan, H. Huang and L. Xia: Functional Materials, Vol. 38, Sp. issue (2007), P. 557 (in Chinese) [7] J. Fan, H. Zhao, Y. Xi, Y. Mu, F. Tang and R. Freer: J. Eur. Ceram. , Vol. 30 (2010), p. C. M. A. R. Rocha, E. A. Varela: J. Mat. Sci. Lett. Vol. 17 (1998), p. J. F. P. C. B. L. L. Y. Zhao: Eur. Phys. J. App. Vol. 11 (2000), p. K. G. Carlson: J. Mater. Sci. Vol. 20 (1985), p. com Keywords: polyurethane; epoxy resin; interpenetrating polymer network; spongy foam; initial adhesion; morphology Abstract: A series of interpenetrating polymer networks (IPN) spongy foams based on polyurethane (PU) and epoxy resin (EP) were prepared by a simultaneous polymerization technique.

This compound material did not need high temperature to absorb and release H2, and avoided metal oxidation, overcame the main technical obstacle of H2 storage. Sung Hyun Yuna et al. [20] reported a novel non-fluorinated composite polymer electrolyte membrane reinforced by an electrospun nano-fiber porous substrate having a symmetrically pore-filled structure. Water swelling of the membrane was significantly suppressed and the proton conductivities were improved, performances in a H2/O2 fuel cell were also greatly enhanced.

J. App. Vol. 11 (2000), p. K. G. Carlson: J. Mater. Sci. Vol. 20 (1985), p. com Keywords: polyurethane; epoxy resin; interpenetrating polymer network; spongy foam; initial adhesion; morphology Abstract: A series of interpenetrating polymer networks (IPN) spongy foams based on polyurethane (PU) and epoxy resin (EP) were prepared by a simultaneous polymerization technique. The PU/EP IPN spongy foams with different epoxy content were investigated. The results showed that initial adhesion increased with the increment of EP content, and gained the highest value when the content reached to 20%; FTIR suggested the formation of PU/EP IPN; the density also increased with the increasing content of epoxy; the highest degree of uniformity in bubbles were observed in foams with 20% content of epoxy resin.

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