Not all that long ago, and perhaps still to this day for the purposes of prestige and creating a sense of occasion, seals were in great use. Before any message or document was to be delivered, this seal was applied to the well-crafted document, using a combination of colorful wax and fire. It was the lending of authority to the document. Today still, when you receive your college diploma or Nobel Science prize, you will see such a seal attached to it. But in numerous industries today, varieties of different seals are being designed, manufactured and installed for different and yet similar purposes.
Insulation seals will keep rooms’ interiors at temperate temperatures and the quality of its air at healthier levels in a carbon neutral and yet, some say, far more effective manner than the use of electricity powered air conditioning and HVAC systems would. Although the proponents of these systems would counter-argue that you now have solar, wind and hydro power as alternative energy sources to fall back on. To speak of future sustainability in a carbon neutral world, the use of hydraulic seals should still have its place in the sun.
At the time of writing, they are being built already. They are already on the robotically controlled conveyor belts of the world’s leading automobile manufacturers, to say nothing of the world’s leading innovators’ efforts. These are your electric powered and battery operated cars and trucks of the future. In fact, trains have been running on time through these means in the world’s developed suburban centers for who knows how many decades already. While no gas or diesel may be required at some stage in the future, hydraulic seals and similar components to the auto engine will still be required to drive the machine forward.