Downloadable software for creating avatars, building virtual objects, and interacting with users and objects in virtual worlds; Humanoid robots with artificial intelligence for use in scientific research; Humanoid robots having communication and learning functions for assisting and entertaining people; Sensors for scientific use to be worn by a human to gather human biometric data and also including an accelerometer, a gyroscope sold as a unit; Wearable activity trackers; Wireless electronic devices for locating and tracking personal objects, wallets, backpacks, luggage