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One moment while we check your credentials. This may take several seconds. Moment meaning: 1. A very short period of time: 2. A particular time or occasion: 3.
Twitter Moments are curated stories about what’s happening around the world—powered by Tweets. It’s easy to create your own story with Twitter Moments.
There are three ways to begin creating your own Moment via twitter.com. You can access Moments through the Moments tab, your profile page, or through a Tweet detail. To get started all you need is a title, description, Tweets, and a selected cover image.
Note: Moment creation is only available on twitter.com. It is no longer possible to create a Moment from your Twitter for iOS or Android app.
From the Moments tab:
From the Moments tab, click the Create new Moment button.
Click the Title your Moment field to give your Moment a name.
Click the Add a description field to type in a description for your Moment.
Choose Tweets to add to your Moment:
From the Add Tweets to your Moment section at the bottom of the page, quickly access content to select Tweets from Tweets I’ve liked, Tweets by account, Tweet link, and Tweet search prompts.
To add a Tweet to your Moment, click on the checkmark icon
Click Set cover to choose a cover image from one of your selected Tweets, or to upload an image from your computer. Drag your selected image to set a Mobile preview, click the Next button, then click the Save button. To change your selected image, hover over the cover image and click on Change cover media. After you’ve set your cover media, the source will be credited below the image.
Once you have Tweets in your collection, click on the up or downarrow buttons to the right of a Tweet to move it up or down.
Click on the delete button to remove a Tweet from your Moment.
Click on the crop button next to any of your selected Tweets to make an image selection for mobile viewing.
Click the Finish later button at the top of the page to save a draft.
When you are ready to make your Moment live, click on the Publish button at the top of the page.
From a Tweet:
Click the icon.
Select New Moment to add the Tweet to a new Moment. Any completed Moments or drafts you have in progress will also be listed in the drop-down to choose from.
Follow the directions above to complete your Moment.
From the Moments tab on your profile page:
Click on the Moments tab, then click the Create new Moment button to get started.
Follow the directions above to complete your Moment.
More options while creating a Moment:
From the More menu at the top of the page:
Click on ••• More while in draft mode.
Select Choose mobile theme color if you’d like to apply one.
Select Mark that Moment contains sensitive material, if appropriate.
Select Share Moment privately to copy and paste your Moment’s URL to share privately with others. The Moment will only be visible to people who have the URL, it will not be visible on your profile page, or published on Twitter.
Select Unpublish Moment to unpublish a Moment you have previously published.
Select Delete Moment to permanently remove the Moment from your profile and Twitter. You will see a confirmation pop-up message to confirm the deletion.
After you’ve saved your Moment as a draft:
You can click on the Edit button under the Moment description to continue editing your Moment.
Click the Tweet button under the Moment description to share your Moment with your followers. The Tweet compose box will pop up giving you an opportunity to edit or add to the auto-populated Moment title and link in the compose box.
Click on the icon under the Moment description to send your Moment via Direct Message, and to view the copy and embed links to your Moment. As you scroll through your saved or published Moment you will see a menu pop-up on the left hand side to conveniently Edit, Tweet, or Message your Moment.
Access all of your Moments (draft or published) by selecting Moments from your profile icon drop down menu.
When creating a Moment via twitter.com, you can select Share Moment privately, which will only make the Moment available to those who have the link. If you would like to make previously published or shared Moments visible to only you, select Unpublish Moment.
Yes. Content displayed in a Moment, such as photos, videos, or Tweets can be reported. Learn about the various options for reporting components of a Moment.
If the cover or any of the individual Tweets of your Moment is reported to us and found to be in violation of the Twitter Rules, your account may be locked—even if you did not author the Tweet.
Note: Learn more about Moments and how to find them.
Since the moment of inertia of an ordinary object involves a continuous distribution of mass at a continually varying distance from any rotation axis, the calculation of moments of inertia generally involves calculus, the discipline of mathematics which can handle such continuous variables. Since the moment of inertia of a point mass is defined by
then the moment of inertia contribution by an infinitesmal mass element dm has the same form. This kind of mass element is called a differential element of mass and its moment of inertia is given by
Note that the differential element of moment of inertia dI must always be defined with respect to a specific rotation axis. The sum over all these mass elements is called an integral over the mass.
Usually, the mass element dm will be expressed in terms of the geometry of the object, so that the integration can be carried out over the object as a whole (for example, over a long uniform rod).
Having called this a general form, it is probably appropriate to point out that it is a general form only for axes which may be called 'principal axes', a term which includes all axes of symmetry of objects. The concept of moment of inertia for general objects about arbitrary axes is a much more complicated subject. The moment of inertia in such cases takes the form of a mathematical tensor quantity which requires nine components to completely define it.
Examples of integration to get moment of inertia. | Straight rod |
Cylinder | |
Sphere |