Path: csiph.com!weretis.net!feeder9.news.weretis.net!border-2.nntp.ord.giganews.com!nntp.giganews.com!Xl.tags.giganews.com!local-1.nntp.ord.giganews.com!news.giganews.com.POSTED!not-for-mail NNTP-Posting-Date: Thu, 12 Feb 2026 20:50:29 +0000 From: DJ Delorie Newsgroups: sci.physics.relativity,sci.electronics.design Subject: Re: energy and mass References: <8e7kokl9hospneh83uskr9otk6kquvvfn8@4ax.com> <10mf1bs$3i2mv$1@dont-email.me> <10mg425$3v2e1$1@dont-email.me> <10mkm4g$fm1r$1@gwaiyur.mb-net.net> <1rqfmxt.jp4fr16u1qtvN%nospam@de-ster.demon.nl> Date: Thu, 12 Feb 2026 15:50:13 -0500 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Cancel-Lock: sha1:VNJo6PAGLMQKXxHshsasC0hcQZ0= MIME-Version: 1.0 Content-Type: text/plain Lines: 10 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-Ggli6lNGOyMR3RAOVQOoDMTsDrUK0f9Ozo2aphspkpKVDQEu32fEUSlH27J5w4L2MirSiTVsyDovgWJ!CbS5GIJDl4QbmMIkTCf8/spTC3YJiZu0++V8+Hr1dH60Oa4Rfg== X-Complaints-To: abuse@giganews.com X-DMCA-Notifications: http://www.giganews.com/info/dmca.html X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 Xref: csiph.com sci.physics.relativity:668651 sci.electronics.design:740344 ram@zedat.fu-berlin.de (Stefan Ram) writes: > In general relativity, photons should attract each other, but > this effect should be very weak and should hardly be observable. If the photons are travelling at the speed of light (duh) wouldn't time dilation make any effect "over time" go to zero anyway? I.e. it doesn't matter how much photons attract each other if there's no time in which to be affected by it. (I am *not* an expert here)