Underground rocket
id:
underground-rocket-268-5097499
title:
Underground rocket
text:
An underground rocket or rocket drill is a device for rapidly drilling holes through soil and rock of varying composition at rates up to 1 metre per second by utilising supersonic jets of hot gases. It was developed by Russian engineer Mikhail Tsiferov in 1948. Proposed uses for the device included drilling shallow holes for mineral exploration, construction, underground gasification of coal, water and methane drainage. The initial design called for an autonomous device equipped with a drill hea
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Underground_rocket
date created:
date modified:
2023-10-30T12:25:22Z
main entity:
{"identifier":"Q4367594","url":"https://www.wikidata.org/entity/Q4367594"}
image:
fields total:
13
integrity:
13