最終更新日：2025/12/06
A thought experiment that exhibits a nondeterministic system within the bounds of Newtonian mechanics. It involves an idealized particle initially sitting motionless at the apex of an idealized radially symmetrical frictionless dome of a certain form. The particle may, after an arbitrary period of time, slide down the dome in an arbitrary direction, contrary to intuition.
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Norton's dome
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元となった辞書の項目
Norton's dome
固有名詞
A
thought
experiment
that
exhibits
a
nondeterministic
system
within
the
bounds
of
Newtonian
mechanics.
It
involves
an
idealized
particle
initially
sitting
motionless
at
the
apex
of
an
idealized
radially
symmetrical
frictionless
dome
of
a
certain
form.
The
particle
may,
after
an
arbitrary
period
of
time,
slide
down
the
dome
in
an
arbitrary
direction,
contrary
to
intuition.
日本語の意味
ニュートン力学の枠内で非決定論的な挙動を示す系を題材とした思考実験。理想化された摩擦のない放射状対称のドームの頂点に静止している粒子が、任意の時間経過後に予測不可能な方向へ滑り出す可能性がある状況を示す。
意味（1）
A
thought
experiment
that
exhibits
a
nondeterministic
system
within
the
bounds
of
Newtonian
mechanics.
It
involves
an
idealized
particle
initially
sitting
motionless
at
the
apex
of
an
idealized
radially
symmetrical
frictionless
dome
of
a
certain
form.
The
particle
may,
after
an
arbitrary
period
of
time,
slide
down
the
dome
in
an
arbitrary
direction,
contrary
to
intuition.
