The invention provides a system for providing an indication including a meniscus mobilizer, a meniscus mobilized by at least meniscus mobilizer, and at least one fluid forming the meniscus, such that mobilization of the meniscus by the meniscus mobilize is accomplished through the use of an electro-mechanical or mechanical sub-system. The system further includes a temperature control sub-system, whereby the temperature control sub-system securitizes and optimizes a meniscus displacement velocity of the meniscus. The system further includes an element of a vehicle, such as a windshield, indicators within the cockpit of the vehicle, ship, train, motorcycle or airplane. Optionally, the element comprises a transparent glass. The indication is an indication of time or other parameter such as speed, acceleration, etc. Indication is provided by means of a fluorescent active fluid that forms the meniscus. The invention includes an ultraviolet light generator. Optionally, the ultraviolet light generator is an LED, whereby the system is not lighted in an orthogonal direction and thereby invisible to a driver of a vehicle.

An indication device is provided which has an electrically conductive fluid driven by an MHD pump. The fluid has an indicator surface driven adjacent indices of an indicator so as to indicate a quantity. A position of the indicator surface is sensed and controlled to ensure accurate indication of the quantity. Optionally, the quantity indicated is time.

An indication device is provided which has an electrically conductive fluid driven by an MHD pump. The fluid has an indicator surface driven adjacent indices of an indicator so as to indicate a quantity. A position of the indicator surface is sensed and controlled to ensure accurate indication of the quantity. Optionally, the quantity indicated is time.

A system manages the reactions of fluids to their changes in their environment in order to convert these reactions into energy thereby harvesting the same while protecting the device against destruction or malfunction when the environmental conditions exceed predefined thresholds.

A system manages the reactions of fluids to their changes in their environment in order to convert these reactions into energy thereby harvesting the same while protecting the device against destruction or malfunction when the environmental conditions exceed predefined thresholds.

A decorative, wearable system includes at least one decorative element mechanically and moveably suspended in a liquid by mechanical fixation elements and actuated by invisible mechanism(s). The liquid shares a substantially similar refraction index as at least one of mechanical fixation elements and/or actuation mechanisms.

A decorative, wearable system includes at least one decorative element mechanically and moveably suspended in a liquid by mechanical fixation elements and actuated by invisible mechanism(s). The liquid shares a substantially similar refraction index as at least one of mechanical fixation elements and/or actuation mechanisms.

A mechanical clock may include a platform with a bladder, a lower valve, an upper valve, and a compression device. The lower valve is in fluid communication with the bladder and a rare fluid source including a rare fluid. The bladder is also in fluid communication with the lower valve, and the upper valve is also in fluid communication with the bladder. A compression device is in contact with the bladder.

A mechanical clock may include a platform with a bladder, a lower valve, an upper valve, and a compression device. The lower valve is in fluid communication with the bladder and a rare fluid source including a rare fluid. The bladder is also in fluid communication with the lower valve, and the upper valve is also in fluid communication with the bladder. A compression device is in contact with the bladder.

A system comprising at least one liquid, the system able to accommodate the thermal expansion/compression of such liquid over a given temperature range without leaking, bursting, and without the generation of bubbles, by adapting its liquid containing chamber volume to the ambient temperature.