There are 64 records in the database
(3 in this table).
You may up- or downvote records to gauge their relevance.
You may up- or downvote records to gauge their relevance.
| Type ▲ ▼ | Description ▲ ▼ | Value | Importance ▲ ▼ |
|---|---|---|---|
| Age of the universe | 13.8 billion years | ||
| Abundance of Hydrogen in the Milky Way | 74 per cent | ||
| Absolute zero | − 273 degree celsius |
Close Help
Welcome on numbers2know.org !
This website originated as a tool to learn, collect and sort numbers.
Not just any numbers: It provides a topically broad list thereof – worth to be memorized, not just as part of general knowledge, but as a benchmark to gauge the world we live in.
These numbers can either be explored one after another in a quiz-like fashion, or accessed in an aggregated, tabular form. In addition, there is a simple voting mechanism that allows visitors to up- and downvote records to rate their importance.
The purpose of numbers2know.org is not to provide a comprehensive list to look up numbers, but to encourage and support people memorizing selected numerical values of general interest.
For more background information click here.
Not just any numbers: It provides a topically broad list thereof – worth to be memorized, not just as part of general knowledge, but as a benchmark to gauge the world we live in.
These numbers can either be explored one after another in a quiz-like fashion, or accessed in an aggregated, tabular form. In addition, there is a simple voting mechanism that allows visitors to up- and downvote records to rate their importance.
The purpose of numbers2know.org is not to provide a comprehensive list to look up numbers, but to encourage and support people memorizing selected numerical values of general interest.
For more background information click here.
Modes
Random/Sequential mode
List mode
Miscellaneous
There are several modes controlled by the buttons in the top-right of this website:
|
|
There are three major modes:
|
There are two minor modes:
|
The control panel for these two modes is displayed below the (single) shown record.
There are four groups of buttons:
There are four groups of buttons:
|
|
Control buttons (left):
|
There are up to four option buttons (right), from left to right:
|
|
|
Importance voting (left):
|
Test mode (right):
|
This mode lists all records in the database in a condensed tabular form.
It provides only a restricted set of the options available in random/sequential mode:
It provides only a restricted set of the options available in random/sequential mode:
|
|
You may share numbers2know.org via the buttons in the lower-right part of this website.
Additional links on the bottom of the page:
|
|