binary business code computer economic economy efficiency efficient fast flecha de papel flight flying handmade light program programming quick simple speed speedy avioncito de papel success angle Battery battery-powered charged charging daytime energy energy-efficient garden garden-light inexpensive internal-rechargeable-battery lamp led light-emitting-diode lighting plastic portable power solar solar-panel solar-powered spike-light stationary steel technology top animals Arabian brown bushy-eyebrows camel camel-wool camelids camelus-dromedarius coat cow curly-eye-lashes domesticated dromedary endurance even-toed-ungulate fawn feral hair hardy hump leathery-pads mammals molt molting moult moulting Ships-of-the-Desert strength strong tough two-toed ungulates wool woolly bushy eyebrows calf camel wool camelus dromedarius curly eye lashes even-toed ungulate leathery pads Ships of the Desert