(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.
These symptoms describe a wide range of physical and mental disorders, however, including depression and attention deficit hyperactivity disorder (ADHD). Bipolar disorder symptoms in adolescents resemble those experienced by bipolar adults, including cycles between mania and depression. However, unlike adults, adolescents may experience these severe mood swings multiple times in a day or a week. Many bipolar teenage girls experience their first episode in conjunction with their first period.