(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.
Signs and Symptoms. People with bipolar disorder experience periods of unusually intense emotion, changes in sleep patterns and activity levels, and unusual behaviors. These distinct periods are called âmood episodes.â Mood episodes are drastically different from the moods and behaviors that are typical for the person.