The grounded modular heated cover is disclosed with a first pliable outer layer and a second pliable outer layer, wherein the outer layers provide durable protection, an electrical heating element between the first and the second outer layers, the electrical heating element configured to convert electrical energy to heat energy, a heat spreading layer, and a thermal insulation layer positioned above the active electrical heating element. Beneficially, such a device provides radiant heat, weather isolation, temperature insulation, and solar heat absorption efficiently and cost effectively. The modular heated cover quickly and efficiently removes ice, snow, and frost from surfaces, and penetrates soil and other material to thaw the material to a suitable depth. A plurality of modular heated covers can be connected on a single 120 Volt circuit protected by a 20 Amp breaker. The modular heated covers are grounded for safety using the conductive heat spreading layer.

Technologies are generally described for positionable air freshener devices. The devices may comprise an insertion section. The insertion section may include electrodes effective to receive and conduct an electric current and secure the device to an electric source. The insertion section may include a ball. The devices may comprise a base. The base may include a socket. The socket may attach to the ball. The socket and ball may form a ball joint. The base may include a port effective to receive electric current from the electrodes. The base may include a collar effective to apply heat sufficient to release a fragrance from a material when electrical current is supplied to the collar from the electrodes. The device may include a cap with a ring shaped cross-section, sized and shaped so as to be connectable to the base such that the port is accessible when the cap is connected.

An apparatus for protecting plants, trees, bushes, etc. from harsh environments when the ambient air temperature is below the lower tolerance limit for that species of plant. The apparatus consists of an envelope that covers the plant with a drawstring on the open end of the envelope that cinches around the base of the plant. Installed in envelope is a blower and heater that heats and circulates air throughout the envelope, creates a micro-environment within the envelope that is above the lower tolerance limit for that species of plant, keeping the plant from being harmed by the outside environment.

An apparatus for protecting plants, trees, bushes, etc. from harsh environments when the ambient air temperature is below the lower tolerance limit for that species of plant. The apparatus consists of an envelope that covers the plant with a drawstring on the open end of the envelope that cinches around the base of the plant. Installed in envelope is a blower and heater that heats and circulates air throughout the envelope, creates a micro-environment within the envelope that is above the lower tolerance limit for that species of plant, keeping the plant from being harmed by the outside environment.

An outdoor marking product comprising a chlorophyll-based agent for highlighting living greenery. The chlorophyll-based agent can be non-detrimental to the health of the living greenery. When viewed by a viewer at a minimum predefined viewing distance, the living greenery treated with the chlorophyll-based agent can be visibly distinguishable from and shinier than neighboring untreated living greenery. When the viewer is nearer than the minimum predefined viewing distance, the difference in shine and color between the treated living greenery and the untreated living greenery can be substantially unnoticeable.

An improved advertising system can include a location having a substantially large expanse of living greenery, a predetermined design for an advertisement, and a chlorophyll-based agent. The location can be observable by viewers at a predefined minimum viewing distance. The chlorophyll-based agent can be used to paint the predetermined design on the living greenery. The chlorophyll-based agent can be non-detrimental to the health of the living greenery. The predetermined design painted on the living greenery with the chlorophyll-based agent can be only viewable by viewers at the predefined minimum viewing distance. Living greenery treated with the chlorophyll-based agent can be visibly distinguishable from and shinier than neighboring untreated living greenery. When a viewer is nearer than the minimum predefined viewing distance, a difference in shine and color between the treated living greenery and the untreated living greenery can be substantially unnoticeable.

The plain growth container is heated by the temperature controlled flexible electrical heating blanket or heating element panel which covers the inside or outside surface of the walls or bottom of the container. The proposed construction allows to maintain the desired warmth of the roots at all stages of the plant development, to promote efficient convective air flow in the plant growing medium, to use DC or AC electric power with optional electromagnetic field cancellation and to use optional antimicrobial additives inside the heating blanket and insulation top cover to prevent mold and disease propagation.

A rover includes a base having wheels and a propulsion system coupled to the wheels to propel the rover around a field. A tower is coupled to the base and extends over the base. Sensors are set on the tower and the base and are configured to sense environmental conditions around the rover at different elevations. A computing system includes a processor and memory. The memory is configured to receive measured data from the sensors and determine an amount and manner of water to be dispensed on plant life in the field.

A rover includes a base having wheels and a propulsion system coupled to the wheels to propel the rover around a field. A tower is coupled to the base and extends over the base. Sensors are set on the tower and the base and are configured to sense environmental conditions around the rover at different elevations. A computing system includes a processor and memory. The memory is configured to receive measured data from the sensors and determine an amount and manner of water to be dispensed on plant life in the field.

A method of emitting two or more volatile materials from a diffuser includes the step of emitting a first volatile material using a first diffusion element for a first randomly determined period of time. The method further includes the step of emitting a second volatile material using a second diffusion element for a section randomly determined period of time.