Abstract: A pad in which nickel and chrome alloy electric line is embedded. This pad can cover part of the outside of the glass bottle in which liquidized agar or agarose solution is contained. This pad can maintain the tight contact with the glass and can provide heat energy to the glass bottle and content in the glass bottle consequentially. The energy provided to the bottle is sufficient enough to maintain the liquid state of the agar or agarose solution in the bottle.

Abstract: The present invention provides a portable and easier to use three-dimensional keyboard for computer-type devices. In a preferred embodiment, the keyboard of the present invention includes smaller keys for select character, functional and operational keys, select raised keys and a keyboard that is more ergonomic and easier to use with smaller computer-type devices. Such embodiments of the present invention provide a simple, improved ergonomic keyboard that is portable, easier-to-use, ergonomic and is compatible with the QWERTY keyboard.