Walking in circles

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Walking in circles

We show that for every x1, . . . , xn, y1, . . . , yn ∈ S there exists i ∈ {1, . . . , n} such that ∑n k=1 d(xi, xk) ≤ ∑n k=1 d(xi, yk), where S 1 is the unit circle and d is the distance on S. We also discuss a game theoretic interpretation of this result.

متن کامل

Walking Straight into Circles

Common belief has it that people who get lost in unfamiliar terrain often end up walking in circles. Although uncorroborated by empirical data, this belief has widely permeated popular culture. Here, we tested the ability of humans to walk on a straight course through unfamiliar terrain in two different environments: a large forest area and the Sahara desert. Walking trajectories of several hou...

متن کامل

Walking in circles: a modelling approach.

Blindfolded or disoriented people have the tendency to walk in circles rather than on a straight line even if they wanted to. Here, we use a minimalistic walking model to examine this phenomenon. The bipedal spring-loaded inverted pendulum exhibits asymptotically stable gaits with centre of mass (CoM) dynamics and ground reaction forces similar to human walking in the sagittal plane. We extend ...

متن کامل

Plant Cytokinesis: Circles within Circles

The current model of the plant cytokinetic apparatus, describing it as being composed of treadmilling microtubules, is challenged by a new study showing that these microtubules display dynamic instability.

متن کامل

Circles in F

In Euclid’s The Elements, a unique circle in R2 is determined by three noncollinear points. This is proven geometrically by constructing a triangle from the three points and showing that the intersection of the perpendicular bisectors of two sides of the triangle gives a point that is equidistant from all three vertices of the triangle [1]. This point is said to define the center of a circle wh...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Discrete Mathematics

سال: 2010

ISSN: 0012-365X

DOI: 10.1016/j.disc.2010.08.007