(Cugnotâs second model weighed 8,000 pounds and had a tendency to tip forward when it wasnât hauling heavy artillery behind it.) As a result, some observers argue that the first true automobile was gasoline-powered. They point to not one but two inventors: Karl Friedrich Benz and Gottlieb Daimler.
Pediatric bipolar disorder is commonly characterized by outbursts of anger, irritability and psychosis, rather than euphoric mania, which is more likely to be seen in adults. Early onset bipolar disorder is more likely to manifest as depression rather than mania or hypomania.
Bipolar Disorder Symptoms. Although bipolar disorder includes the depressive symptoms described above, it also includes manic symptoms. Bipolar disorder is characterized by uncontrollable dramatic mood swings that fluctuate between depressive lows and manic highs. Manic symptoms may include: 1  Irritability. 2  Anger.