The Fastest Human-Made Object Ever

The video discusses the fastest human-made objects, focusing on the Helios 2 probe and a manhole cover from a nuclear test. It details the unexpected results of the Pascal B test, where a steel plate was launched at high speed. The Helios probes, launched in the 1970s, achieved high speeds due to their elliptical orbits around the sun. Future missions like Juno and Solar Probe Plus aim to break these speed records, with Solar Probe Plus expected to reach 200 km/s. The video concludes with a call to support SciShow on Patreon.

What was the unexpected outcome of the Pascal B nuclear test?

• The bomb did not detonate.

• The steel plate was launched at high speed.

• The concrete chute remained intact.

• The test was canceled due to weather.

Which of the following factors does NOT affect angular momentum?

• Mass

• Radius

• Velocity

• Temperature

What is the primary goal of the Solar Probe Plus mission?

• To orbit around Jupiter

• To measure Earth's magnetic field

• To study the Sun's outer atmosphere

• To land on the Sun's surface

How fast is the Solar Probe Plus expected to travel as it swings by the Sun?

• 250 kilometers per second

• 200 kilometers per second

• 150 kilometers per second

• 100 kilometers per second

What speed is Juno expected to reach relative to Jupiter?

• 90 kilometers per second

• 80 kilometers per second

• 74 kilometers per second

• 60 kilometers per second