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Question Marathon for MagLev C.

I shall begin the marathon!

What are the potential uses of a vibrating sample magnetometer?

It is used to determine magnetic properties of the sample, including its magnetic moment, and its hysteresis curve (the relationship between field strength and the magnetization of a material).

Where and when was the first maglev railway implemented?

The first maglev railway was opened to provide transit between the airport and train station in Birmingham, England.

When we make the car, which one is important? Add more mass with the same speed or increase the speed with the same mass.

shzhang wrote:When we make the car, which one is important? Add more mass with the same speed or increase the speed with the same mass.

(For future reference, this question better belongs in the other thread, this forum is for sharing questions to study for the test). The event is no longer about speed, with a minimum time of 5 seconds, which considering the times less than a second with similar masses last year, even with much less propulsion, should still be very attainable with a decent propeller and motor. The main challenge now is to reliably slow the vehicle down to even slower times. However, if you are unable to make you car run in 5 seconds with the additional mass, it might not be worth the risk.

twototwenty wrote:Where and when was the first maglev railway implemented?

1984 (The other user only answered the location)

Based on the test at the last competition, there seems to be a lot of questions on history, so:
What is the fastest speed ever reached by a MagLev train?

I believe it's 500Km/h, or 361m/hr

Phys1cs wrote:I believe it's 500Km/h, or 361m/hr

That is correct, 581 Km/h (361 m/hr) by the Yamanashi Maglev Test Line in Japan.
Who had the first patent on the Maglev train?

Alfred Zehden.

Who is credited with the discovery of electromagnetic induction?