Why induction heat only means electromagnetic induction?

Induction is not a kind of convection. A magnetic field induces a current in a conductive object. Inductive stoves have an electric coil. As electric current flows through the coil, a magnetic field is induced. The magnetic field induces an electric current in the metal cookware. This current turns into heat. Convection is the process by which heat is transfered from a hot object to a cooler object, and it does not involve inducing electric or magnetic fields.

Because there is no (or extremely little) heat generated by an induction cooker. It requires a metal container to be placed in its magnetic field, to cause heating of that container. The metal container acts like a short circuit on the secondary of a transformer, so currents flow in it, and it heats. A standard cooker element heats because of current flowing in its resistive element. The induction heater is pretty simply a coil of wire, with power applied. It draws little current until the metal container is placed above it.

There are two ways heat can transfer. Though, convection and radiation. Induction would go under the category of convection. A microwave uses the other form of radiation.

The best thing the government can do is get out of the way. Hyperion Power is going to be selling small units (the size of a hot tub) that will produce enough power for 25,000 homes. These units will use material that quickly cools when exposed to air and would be very difficult to weaponize for nuclear weapons. A meltdown is impossible due to the nature of the construction. But Hollywood has demonized nuclear plants to the extent we may never be able to commission new ones, unless Obama actively campaigns for it. That seems unlikely since his supporters would object. Another choice may be on the way that poses even fewer problems than nuclear. Solar power satellites will soon be going up, barring unforeseen delays. In a high-orbit they're geosynchonous and get sunlight far longer than any surface station, and the sunlight is unfiltered by atmosphere so they're vastly more efficient. A single satellite could produce 10 gigawatts of energy that is then beamed down to an Earth-based receiving station. The beam itself is far less harmful than the noonday sun. In 2016 Solaren plans to launch a satellite that will power 250,000 homes and Japan is planning similar launches. The only drawback is that such a satellite would be vulnerable to space debris, solar wind and attack but each of these could be overcome. If you really want solar, why not go all the way with such a system? Once the initial cost is paid back the electricity is very inexpensive and it's available 24/7 if you have multiple satellites feeding the grid.

Because there is no (or extremely little) heat generated by an induction cooker. It requires a metal container to be placed in its magnetic field, to cause heating of that container. The metal container acts like a short circuit on the secondary of a transformer, so currents flow in it, and it heats. A standard cooker element heats because of current flowing in its resistive element. The induction heater is pretty simply a coil of wire, with power applied. It draws little current until the metal container is placed above it.

There are two ways heat can transfer. Though, convection and radiation. Induction would go under the category of convection. A microwave uses the other form of radiation.