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.
The adolescent with bipolar disorder is more likely to have depression and mixed episodes, with rapid changes in mood. Symptoms of bipolar disorder in women tend to include more depression and anxiety as well as a rapid-cycling pattern compared to symptoms in men.
The classic symptoms of bipolar disorder are the periodic changes in mood, alternating between periods of elevated mood (mania or hypomania) and periods of depression. If you are living with bipolar disorder, you may feel energetic, abnormally happy, and make reckless decisions during manic states. During depressive states, you may feel the overwhelming urge to cry, experience feelings of hopelessness, and have a negative outlook on life.