Black Hole (light)

Black hole vizualization based on Einstein's General Theory of Relativty

Thomas Müller · tauzero7.android.relavis.blackhole.fastview_free

Not rated yet 10K+ downloads v1.1 464.6 KB Android 4.0.3+ PEGI 3 · Everyone

Download APK 464.6 KB All versions

At a glance

Latest version: v1.1 (4)
Updated: May 31, 2020 (6 years ago)
APK size: 464.6 KB
Requires: Android 4.0.3+ (API 15)
CPU support: Any (no native code)
Graphics: OpenGL ES 2.0+
Category: Education (app)
Permissions: 1 (1 sensitive)
Developer contact: [email protected]

About this APK

Black Hole (light) is an app by Thomas Müller in the Education category. It has no native code, so it runs on any Android processor.

It asks for 1 permission, 1 of them sensitive: read shared storage.

What's new in v1.1

Black hole can be moved also with the gravity sensor. Set a moving factor within "Settings" (1000 is a good choice) and then just move your smartphone or tablet.

Description

From the listing uploaded by “split-store”.

A black hole is the most weird object in the universe. An object that passes behind it appears strongly distorted because of the black hole's influence on light propagation. Turn your smart phone or tablet into a general relativistic simulator and move the black hole around. The visualization is based on Einstein's general theory of relativity for a Schwarzschild black hole. The object is represented by an image that is put on a canvas behind the black hole. The distance between the canvas and the black hole, as well as the distance between the black hole and the observer, can be modified. Of course, the black hole mass can also be changed. For the screenshots, NASA's "Blue Marble" photograph of Apollo 17 and the Milky Way panorama by ESO/S.Brunier were taken. Your smart phone or tablet has to support 32 bit floating point operations on the graphics card, otherwise, there will be artifacts or nothing will be shown. Please note that you can use only images that fit into the GPU texture memory of your device.

Security & authenticity

Security rating: Trusted

Signing certificate

Certificate issued to “Thomas Mueller” The developer's name — though anyone can put any name in a certificate.

Store checks and file details

Developer signature verified May 31, 2020
Antivirus scan passed Jan 19, 2021
Signed byCN=Thomas Mueller
Signing certificate (SHA-1)1C:D4:F6:5C:D2:7E:DA:20:D5:B6:66:AD:17:E6:75:E7:DB:31:BF:15
File MD5b4bb5325c8b1bd70f9c69d485d37712d
Uploaded by “split-store” Gold tier · 24,358 followers · uploading since 2019

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (1)

Black Hole (light) requests 1 permission, 1 of them sensitive.

Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE

Required hardware & features

Basic touch input android.hardware.faketouch
Landscape screen android.hardware.screen.landscape

Black Hole (light) APK: questions and answers

Can I install this APK over the version I already have?

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the Black Hole (light) APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is b4bb5325c8b1bd70f9c69d485d37712d.