A kinetic energy system incorporates multiple flywheels, each flywheel situated and adapted to develop and store kinetic energy, and to subsequently impart that energy to move a work machine. The e-mails are received at a firewall or router en route to a mail server. Further, even when irradiated with the laser light L2 at such a laser power as to melt both edge parts of the glass layer 3, the part of the glass layer 3 on the side opposite from the glass member 4 is prevented from being crystallized by excess heat input, whereby the fusing state of the glass layer 3 with respect to the other glass member can be made uniform. The system is exemplified in an implementation in an ophthalmic laser surgery system. A diverter diverts a portion of the combined modulated wavelength bands to at least one sensor. The design allows for repeated, fast, and lengthy heating of the heating chamber, and thus is an improvement over prior devices which can only be utilized in short bursts.