ultrasound
The crypto community often refers to ETH as ultrasound money due to its underlying economic properties. Specifically, in EIP-1559, the base gas fee of every transaction is burned. As a result, if gas fees are high and there is significant network demand, ETH can become a deflationary asset (more ETH is burned than mined). Ultrasound is a homage to the bat and sonar emojis used by the crypto community symbolizing ETH as ultrasound money and is composed of EIP-1559 source code from go-ethereum.
blockspace
In EIP-1559, the base gas fee of every transaction is burned. As a result, if gas fees are high and there is significant network demand, the network may produce deflationary blocks. This means more ETH is being burned than created/rewarded to a miner. Additionally, block space is flexible and adjusts accordingly with network demand. There is an average block size of 15 Million gas used and a max gas limit of 30 Million. Blockspace is a visual representation of variable block size composed of deflationary block numbers until block #13787495.
miner tip
In EIP-1559, every transaction fee is composed of both a base fee and a miner tip. The base fee is burned, and the miner tip is paid to a block's miner. The miner tip equals the gas used in a transaction * minimum(miner tip, fee cap - base fee). The miner tip is essentially a small bribe to miners in order to incentivize the inclusion of transactions with the largest tip into a block. "Miner Tip" is a visual representation of an ETH tip between users and miners with the ETH symbol containing the exact miner tip formula code from go-ethereum.