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.
Bipolar Symptoms: Depression. In bipolar disorder, manic episodes alternate with periods of emotional lows, which are known as depressive episodes. Signs of a depressive episode may include: 1  Sadness, anxiety, or a feeling of emptiness. 2  Hopelessness. 3  Feelings of guilt, feeling worthless, or feeling helpless.