---
title: "2 Unexpected Discovery Quotes by 2 authors"
description: "Browse 2 Unexpected Discovery quotes by 2 authors. Discover the best Unexpected Discovery sayings and thoughts."
image: "https://sms4smile.com/quotes/i/9b0/robert-bunsen-54977_astronomy_at-the-moment-i-am-occupied-by-an-invest_1163190.jpg"
---

> [“At the moment I am occupied by an investigation with Kirchhoff which does not allow us to sleep. Kirchhoff has made a totally unexpected discovery, inasmuch as he has found out the cause for the dark lines in the solar…](https://sms4smile.com/quotes/robert-bunsen/at-the-moment-i-am-occupied-by-an-investigation-with-kirchhoff-which/)

[Robert Bunsen](https://sms4smile.com/quotes/author/robert-bunsen/)

[Image](https://sms4smile.com/quotes/i/9b0/robert-bunsen-54977_astronomy_at-the-moment-i-am-occupied-by-an-invest_1163190.jpg)

> [At any one time there is a natural tendency among physicists to believe that we already know the essential ingredients of a comprehensive theory . But each time a new frontier of observation is broached we inevitably discover new phenomena…](https://sms4smile.com/quotes/val-logsdon-fitch/at-any-one-time-there-is-a-natural-tendency-among-physicists-to/)

[Val Logsdon Fitch](https://sms4smile.com/quotes/author/val-logsdon-fitch/)

[Image](https://sms4smile.com/quotes/i/19c/val-logsdon-fitch-76035_believe_at-any-one-time-there-is-a-natural-tende_3136367.jpg)

```json
{
    "@context": "https://schema.org",
    "@graph": [
        {
            "@type": "ItemList",
            "@id": "https://sms4smile.com/quotes/about/unexpected-discovery/#itemlist",
            "name": "Unexpected Discovery Quotes",
            "numberOfItems": 2,
            "itemListElement": [
                {
                    "@type": "ListItem",
                    "position": 1,
                    "item": {
                        "@type": "Quotation",
                        "text": "“At the moment I am occupied by an investigation with Kirchhoff which does not allow us to sleep. Kirchhoff has made a totally unexpected discovery, inasmuch as he has found out the cause for the dark lines in the solar spectrum and can produce these lines artificially intensified both in the solar spectrum and in the continuous spectrum of a flame, their position being identical with that of Fraunhofer ’s lines. Hence the path is opened for the determination of the chemical composition of the Sun and the fixed stars.”",
                        "creator": {
                            "@type": "Person",
                            "name": "Robert Bunsen"
                        },
                        "url": "https://sms4smile.com/quotes/robert-bunsen/at-the-moment-i-am-occupied-by-an-investigation-with-kirchhoff-which/",
                        "image": {
                            "@type": "ImageObject",
                            "@id": "https://sms4smile.com/quotes/i/9b0/robert-bunsen-54977_astronomy_at-the-moment-i-am-occupied-by-an-invest_1163190.jpg",
                            "contentUrl": "https://sms4smile.com/quotes/i/9b0/robert-bunsen-54977_astronomy_at-the-moment-i-am-occupied-by-an-invest_1163190.jpg",
                            "url": "https://sms4smile.com/quotes/i/9b0/robert-bunsen-54977_astronomy_at-the-moment-i-am-occupied-by-an-invest_1163190.jpg",
                            "width": 1080,
                            "height": 1080,
                            "caption": "“At the moment I am occupied by an investigation with Kirchhoff which does not allow us to sleep. Kirchhoff…” — Robert Bunsen",
                            "creditText": "SMS4Smile Quotes",
                            "creator": {
                                "@id": "https://sms4smile.com/quotes/#organization"
                            }
                        }
                    }
                },
                {
                    "@type": "ListItem",
                    "position": 2,
                    "item": {
                        "@type": "Quotation",
                        "text": "At any one time there is a natural tendency among physicists to believe that we already know the essential ingredients of a comprehensive theory . But each time a new frontier of observation is broached we inevitably discover new phenomena which force us to modify substantially our previous conceptions. I believe this process to be unending, that the delights and challenges of unexpected discovery will continue always.",
                        "creator": {
                            "@type": "Person",
                            "name": "Val Logsdon Fitch"
                        },
                        "url": "https://sms4smile.com/quotes/val-logsdon-fitch/at-any-one-time-there-is-a-natural-tendency-among-physicists-to/",
                        "image": {
                            "@type": "ImageObject",
                            "@id": "https://sms4smile.com/quotes/i/19c/val-logsdon-fitch-76035_believe_at-any-one-time-there-is-a-natural-tende_3136367.jpg",
                            "contentUrl": "https://sms4smile.com/quotes/i/19c/val-logsdon-fitch-76035_believe_at-any-one-time-there-is-a-natural-tende_3136367.jpg",
                            "url": "https://sms4smile.com/quotes/i/19c/val-logsdon-fitch-76035_believe_at-any-one-time-there-is-a-natural-tende_3136367.jpg",
                            "width": 1080,
                            "height": 1080,
                            "caption": "“At any one time there is a natural tendency among physicists to believe that we already know the essential…” — Val Logsdon Fitch",
                            "creditText": "SMS4Smile Quotes",
                            "creator": {
                                "@id": "https://sms4smile.com/quotes/#organization"
                            }
                        }
                    }
                }
            ]
        },
        {
            "@type": "CollectionPage",
            "@id": "https://sms4smile.com/quotes/about/unexpected-discovery/#webpage",
            "url": "https://sms4smile.com/quotes/about/unexpected-discovery/",
            "name": "Unexpected Discovery Quotes",
            "isPartOf": {
                "@id": "https://sms4smile.com/quotes/#website"
            },
            "mainEntity": {
                "@id": "https://sms4smile.com/quotes/about/unexpected-discovery/#itemlist"
            },
            "primaryImageOfPage": {
                "@id": "https://sms4smile.com/quotes/i/9b0/robert-bunsen-54977_astronomy_at-the-moment-i-am-occupied-by-an-invest_1163190.jpg"
            },
            "description": "Browse 2 Unexpected Discovery quotes by 2 authors. Discover the best Unexpected Discovery sayings and thoughts.",
            "breadcrumb": {
                "@id": "https://sms4smile.com/quotes/about/unexpected-discovery/#breadcrumb"
            }
        },
        {
            "@type": "BreadcrumbList",
            "@id": "https://sms4smile.com/quotes/about/unexpected-discovery/#breadcrumb",
            "itemListElement": [
                {
                    "@type": "ListItem",
                    "position": 1,
                    "name": "Home",
                    "item": "https://sms4smile.com/"
                },
                {
                    "@type": "ListItem",
                    "position": 2,
                    "name": "Quotes",
                    "item": "https://sms4smile.com/quotes/"
                },
                {
                    "@type": "ListItem",
                    "position": 3,
                    "name": "Topics",
                    "item": "https://sms4smile.com/quotes/categories/"
                },
                {
                    "@type": "ListItem",
                    "position": 4,
                    "name": "Unexpected Discovery Quotes",
                    "item": "https://sms4smile.com/quotes/about/unexpected-discovery/"
                }
            ]
        },
        {
            "@type": "WebSite",
            "@id": "https://sms4smile.com/quotes/#website",
            "name": "SMS4Smile Quotes",
            "url": "https://sms4smile.com/quotes/",
            "publisher": {
                "@id": "https://sms4smile.com/quotes/#organization"
            }
        },
        {
            "@type": "Organization",
            "@id": "https://sms4smile.com/quotes/#organization",
            "name": "SMS4Smile Quotes",
            "url": "https://sms4smile.com/quotes/",
            "logo": {
                "@type": "ImageObject",
                "url": "https://sms4smile.com/quotes/wp-content/themes/sq/assets/icons/icon-512.png",
                "width": 512,
                "height": 512
            }
        }
    ]
}
```