powerboats

Only the Murngin even approach being an immediate-return hunter-gatherer society like our prehistoric ancestors, and they had been living with missionaries, guns, and aluminum powerboats for decades by 1975, when the data Pinker cites were collected.

Christopher Ryan: Pinker's Dirty War on Prehistoric Peace Christopher Ryan 2012

The motors are perfect for small launches and trawler powerboats up to 32 feet.

Robin Madel: Cleaning Up the Chesapeake Bay, One Electric Motor at a Time Robin Madel 2011

Reuther says that electric motors are not necessarily appropriate for powerboats that go 15 to 25 kph because the battery technology is not yet capable of providing sustained higher speeds, although a Swiss company sells boats that they say go as fast as 60 kph using a big 162-horsepower 120 kilowatt engine and lighter weight, lithium-polymer batteries from a military outfitter.

Robin Madel: Cleaning Up the Chesapeake Bay, One Electric Motor at a Time Robin Madel 2011

Reuther says that electric motors are not necessarily appropriate for powerboats that go 15 to 25 kph because the battery technology is not yet capable of providing sustained higher speeds, although a Swiss company sells boats that they say go as fast as 60 kph using a big 162-horsepower 120 kilowatt engine and lighter weight, lithium-polymer batteries from a military outfitter.

Robin Madel: Cleaning Up the Chesapeake Bay, One Electric Motor at a Time Robin Madel 2011

Only the Murngin even approach being an immediate-return hunter-gatherer society like our prehistoric ancestors, and they had been living with missionaries, guns, and aluminum powerboats for decades by 1975, when the data Pinker cites were collected.

Christopher Ryan: Pinker's Dirty War on Prehistoric Peace Christopher Ryan 2012

The motors are perfect for small launches and trawler powerboats up to 32 feet.

Robin Madel: Cleaning Up the Chesapeake Bay, One Electric Motor at a Time Robin Madel 2011

The motors are perfect for small launches and trawler powerboats up to 32 feet.

Robin Madel: Cleaning Up the Chesapeake Bay, One Electric Motor at a Time Robin Madel 2011

Literally hundreds of pontoons went careering down the river, crashing into unmanned powerboats that were already cannoning into each other.

Australian floods: Why were we so surprised? 2011

Reuther says that electric motors are not necessarily appropriate for powerboats that go 15 to 25 kph because the battery technology is not yet capable of providing sustained higher speeds, although a Swiss company sells boats that they say go as fast as 60 kph using a big 162-horsepower 120 kilowatt engine and lighter weight, lithium-polymer batteries from a military outfitter.

Robin Madel: Cleaning Up the Chesapeake Bay, One Electric Motor at a Time Robin Madel 2011

Reuther says that electric motors are not necessarily appropriate for powerboats that go 15 to 25 kph because the battery technology is not yet capable of providing sustained higher speeds, although a Swiss company sells boats that they say go as fast as 60 kph using a big 162-horsepower 120 kilowatt engine and lighter weight, lithium-polymer batteries from a military outfitter.

Robin Madel: Cleaning Up the Chesapeake Bay, One Electric Motor at a Time Robin Madel 2011