A small carriage propelled by a steam turbine powered engine was apparently invented by Ferdinand Verbiest, a Belgian, in 1672 while in China. It is argued that this constitutes the first 'car' ever invented, but the design was only 65cm long, had no seats or pilot controls, and was intended as little more than a toy.
In bipolar disorder, mixed state is a condition during which symptoms of both mania and depression occur simultaneously. Individuals experiencing a mixed state may have manic symptoms such as grandiose thoughts while simultaneously experiencing depressive symptoms such as excessive guilt or feeling suicidal.
Quick Answer. The bipolar type of schizoaffective disorder is characterized by the symptoms of two combined mental illnesses: schizophrenia, marked by hallucinations, delusions and disordered thinking; and bipolar disorder, marked by mood changes that cycle from depression to mania, explains WebMD.