# How to glide in Schwarzschild spacetime

## TL;DR

This paper examines the dynamics of extended objects in Schwarzschild spacetime, focusing on the radial fall of connected point masses with oscillating separation, highlighting limitations of the model at extreme frequencies.

## Contribution

It introduces a model of extended objects with oscillating separation in Schwarzschild spacetime and discusses its limitations at high and low oscillation frequencies.

## Key findings

- Model is inappropriate at high oscillation frequencies.
- Model is inappropriate at low oscillation frequencies.
- Highlights the need for alternative descriptions of extended objects.

## Abstract

We investigate the motion of extended test objects in the Schwarzschild spacetime, particularly the radial fall of two point masses connected by a massless rod of a length given as a fixed, periodic function of time. We argue that such a model is inappropriate in the most interesting regimes of high and low oscillation frequencies.